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1<?xml version = '1.0' encoding = 'UTF-8'?> 1<?xml version='1.0' encoding='UTF-8'?>
2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/virt-mail-howto.xml,v 1.21 2003/12/07 18:21:26 pylon Exp $ --> 2<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/virt-mail-howto.xml,v 1.45 2005/05/29 16:12:29 swift Exp $ -->
3<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> 3<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
4 4
5<guide link=" /doc/en/virt-mail-howto.xml" > 5<guide link="/doc/en/virt-mail-howto.xml">
6<title>Virtual Mailhosting System Guide</title> 6<title>Virtual Mailhosting System with Postfix Guide</title>
7
7<author title="Author" > 8<author title="Author">
8<mail link="antifa@gentoo.org" >Ken Nowack</mail> 9 <mail link="antifa@gentoo.org">Ken Nowack</mail>
9</author> 10</author>
10<author title="Author" > 11<author title="Author">
11<mail link="ezra@revoltltd.org" >Ezra Gorman</mail> 12 <mail link="ezra@revoltltd.org">Ezra Gorman</mail>
12</author> 13</author>
13<abstract>This document details how to create a virtual mailhosting system based upon postfix, mysql, courier-imap, and cyrus-sasl. </abstract> 14<author title="Editor">
15 <mail link="klasikahl@gentoo.org">Zack Gilburd</mail>
16</author>
17<author title="Editor">
18 <mail link="seather@scygro.za.net">Scygro</mail>
19</author>
20
21<abstract>
22This document details how to create a virtual mailhosting system based upon
23postfix, mysql, courier-imap, and cyrus-sasl.
24</abstract>
25
14<version>1.0.6</version> 26<version>1.0.22</version>
15<date>December 7, 2003</date> 27<date>2005-05-29</date>
28
16<!-- 29<!--
17
18Contents 30Contents
19 31
20I. Introduction 32I. Introduction
21II. Postfix Basics 33II. Postfix Basics
22III. Courier-imap 34III. Courier-imap
30XI. Squirrelmail 42XI. Squirrelmail
31XII. Mailman 43XII. Mailman
32XIII. Content Filtering and Anti-Virus 44XIII. Content Filtering and Anti-Virus
33XIV. Wrap Up 45XIV. Wrap Up
34XV. Troubleshooting 46XV. Troubleshooting
47-->
35 48
36--><chapter> 49<chapter>
37<title>Introduction</title> 50<title>Introduction</title>
38<body> 51<section>
39<p>For most gentoo users, a simple mail client and fetchmail will do. However, if you're hosting a domain with your system, you'll need a full blown MTA (Mail Transfer Agent). And if you're hosting multiple domains, then you'll definitely need something more robust to handle all of the email for your users. This system was designed to be an elegant solution to that problem.</p>
40<p>A virtual mail system needs to be able to handle email for numerous domains with multiple users over a variety of interfaces. This presents some issues that must be dealt with. For instance, what if you have two users on different domains that want the same user name? If you are providing imap access and smtp-auth, how do combine the various authentication daemons into a single system? How do you provide security for the numerous components that comprise the system? How do you manage it all?</p>
41<p>This howto will show you how to set up with a mail system capable of handling mail for as many domains as your hardware can handle, supports virtual mail users that don't require shell accounts, has domain specific user names, can authenticate web, imap, smtp, and pop3 clients against a single database, utilizes ssl for transport layer security, has a web interface, can handle mailing lists for any domain on the machine, and is controlled by a nice, central and easy mysql database. </p>
42<p>There are quite a variety of ways to go about setting up a virtual mailhosting system. With so may options, another may be the best choice for your specific needs. Consider investigating <uri>http://www.qmail.org/</uri> and <uri>http://www.exim.org/</uri> to explore your options. </p>
43<p>The following packages are used in this setup:
44
45 apache, courier-imap, pam_mysql, postfix, mod_php, phpmyadmin, squirrelmail, cyrus-sasl, mysql, php, and mailman.</p>
46<p>Make sure to turn on the following USE variables in <path>/etc/make.conf</path> before compiling the packages: <c>USE=&quot;mysql imap libwww maildir sasl ssl&quot;</c>. Otherwise you will most likely have to recompile things to get the support you need for all the protocols. Further, it's a good idea to turn off any other mail and network variables, like ipv6.</p>
47<impo>This howto was written for postfix-2.0.x. If you are using postfix &lt; 2 some of the variables in this document will be different. It is recommended that you upgrade. Some other packages included in this howto are version sensitive as well. You are advised to read the documentation included with packages if you run into issues with this.</impo>
48<impo>This document uses apache-1.3.x. Apache-2 has been marked stable in portage. However there are still a number of issues with php integration. Until php support in apache-2.0.x is marked stable, this guide will continue to use the 1.3.x version.</impo>
49<impo>You need a domain name to run a public mail server, or at least an MX record for a domain. Ideally you would have control of at least two domains to take advantage of your new virtual domain functionality.</impo>
50<impo>Make sure <path>/etc/hostname</path> is set to the right hostname for your mail server. Verify your hostname is set correctly with <c>hostname</c>. Also verify that there are no conflicting entries in <path>/etc/hosts</path>.</impo>
51<note>It is recommended that you read this entire document and familiarize yourself with all the steps before attempting the install. If you run into problems with any of the steps, check the troubleshooting guide at the end of this document. Also, not all the referenced packages are necessary, this set up is very flexible. For instance, if you do not desire a web interface, feel free to skip the squirrelmail section.</note>
52</body> 52<body>
53
54<p>
55For most gentoo users, a simple mail client and fetchmail will do. However, if
56you're hosting a domain with your system, you'll need a full blown MTA (Mail
57Transfer Agent). And if you're hosting multiple domains, then you'll definitely
58need something more robust to handle all of the email for your users. This
59system was designed to be an elegant solution to that problem.
60</p>
61
62<p>
63A virtual mail system needs to be able to handle email for numerous domains
64with multiple users over a variety of interfaces. This presents some issues
65that must be dealt with. For instance, what if you have two users on different
66domains that want the same user name? If you are providing imap access and
67smtp-auth, how do combine the various authentication daemons into a single
68system? How do you provide security for the numerous components that comprise
69the system? How do you manage it all?
70</p>
71
72<p>
73This howto will show you how to set up with a mail system capable of handling
74mail for as many domains as your hardware can handle, supports virtual mail
75users that don't require shell accounts, has domain specific user names, can
76authenticate web, imap, smtp, and pop3 clients against a single database,
77utilizes ssl for transport layer security, has a web interface, can handle
78mailing lists for any domain on the machine, and is controlled by a nice,
79central and easy mysql database.
80</p>
81
82<p>
83There are quite a variety of ways to go about setting up a virtual mailhosting
84system. With so may options, another may be the best choice for your specific
85needs. Consider investigating <uri>http://www.qmail.org/</uri> and
86<uri>http://www.exim.org/</uri> to explore your options.
87</p>
88
89<p>
90The following packages are used in this setup: apache, courier-imap, courier-authlib
91postfix, mod_php, phpmyadmin, squirrelmail, cyrus-sasl, mysql, php, and
92mailman.
93</p>
94
95<p>
96Make sure to turn on the following USE variables in <path>/etc/make.conf</path>
97before compiling the packages: <c>USE="mysql imap libwww maildir
98sasl ssl"</c>. Otherwise you will most likely have to recompile things to
99get the support you need for all the protocols. Further, it's a good idea to
100turn off any other mail and network variables, like ipv6.
101</p>
102
103<impo>
104This howto was written for postfix-2.0.x. If you are using postfix &lt; 2 some
105of the variables in this document will be different. It is recommended that you
106upgrade. Some other packages included in this howto are version sensitive as
107well. You are advised to read the documentation included with packages if you
108run into issues with this.
109</impo>
110
111<impo>
112This document uses apache-1.3.x. Apache-2 has been marked stable in portage.
113However there are still a number of issues with php integration. Until php
114support in apache-2.0.x is marked stable, this guide will continue to use the
1151.3.x version.
116</impo>
117
118<impo>
119You need a domain name to run a public mail server, or at least an MX record
120for a domain. Ideally you would have control of at least two domains to take
121advantage of your new virtual domain functionality.
122</impo>
123
124<impo>
125Make sure <path>/etc/hostname</path> is set to the right hostname for your mail
126server. Verify your hostname is set correctly with <c>hostname</c>. Also
127verify that there are no conflicting entries in <path>/etc/hosts</path>.
128</impo>
129
130<note>
131It is recommended that you read this entire document and familiarize yourself
132with all the steps before attempting the install. If you run into problems with
133any of the steps, check the troubleshooting guide at the end of this document.
134Also, not all the referenced packages are necessary, this set up is very
135flexible. For instance, if you do not desire a web interface, feel free to skip
136the squirrelmail section.
137</note>
138
139</body>
140</section>
53</chapter> 141</chapter>
142
54<chapter> 143<chapter>
55<title>Postfix Basics</title> 144<title>Postfix Basics</title>
145<section>
56<body> 146<body>
57<pre caption="Install postfix" ># <i>emerge postfix</i> 147
148<pre caption="Install postfix">
149# <i>emerge postfix</i>
150</pre>
151
152<warn>
153Verify that you have not installed any other MTA, such as ssmtp, exim, or
154qmail, or you will surely have BIG problems.
155</warn>
156
157<p>
158After postfix is installed, it's time to configure it. Change the following
159options in <path>/etc/postfix/main.cf</path>:
58</pre> 160</p>
59<warn>Verify that you have not installed any other MTA, such as ssmtp, exim, or qmail, or you will surely have BIG problems.</warn> 161
60<p>After postfix is installed, it's time to configure it. Change the following options in <path>/etc/postfix/main.cf</path>:</p>
61<pre caption="/etc/postfix/main.cf" > 162<pre caption="/etc/postfix/main.cf">
62myhostname = $host.domain.name 163myhostname = $host.domain.name
63mydomain = $domain.name 164mydomain = $domain.name
64inet_interfaces = all 165inet_interfaces = all
65mydestination = $myhostname, localhost.$mydomain $mydomain 166mydestination = $myhostname, localhost.$mydomain $mydomain
66mynetworks = my.ip.net.work/24, 127.0.0.0/8 167mynetworks = my.ip.net.work/24, 127.0.0.0/8
67home_mailbox = .maildir/ 168home_mailbox = .maildir/
68local_destination_concurrency_limit = 2 169local_destination_concurrency_limit = 2
69default_destination_concurrency_limit = 10 </pre> 170default_destination_concurrency_limit = 10
171</pre>
172
173<p>
70<p>Next change the following in <path>/etc/postfix/master.cf</path>. This will turn on verbose output for debugging:</p> 174Next change the following in <path>/etc/postfix/master.cf</path>. This will
175turn on verbose output for debugging:
176</p>
177
71<pre caption="/etc/postfix/master.cf" > 178<pre caption="/etc/postfix/master.cf">
72# service type private unpriv chroot wakeup maxproc command + args 179# service type private unpriv chroot wakeup maxproc command + args
73# (yes) (yes) (yes) (never) (50) 180# (yes) (yes) (yes) (never) (50)
74# 181#
75========================================================================== 182==========================================================================
183<comment>(Just add the "-v" after the smtpd in the following line)</comment>
76smtp inet n - n - - smtpd -v 184smtp inet n - n - - smtpd -v
185</pre>
77 186
78<codenote>Just add the <c>-v</c> after the smtpd in the above line</codenote> 187<p>
188Next, edit <path>/etc/mail/aliases</path> to add your local aliases. There
189should at least be an alias for root like: <c>root: your@email.address</c>.
79</pre> 190</p>
80<p>Next, edit <path>/etc/mail/aliases</path> to add your local aliases. There should at least be an alias for root like: <c>root: your@email.address</c>.</p> 191
81<pre caption="Starting postfix for the first time" > 192<pre caption="Starting postfix for the first time">
82# <i>/usr/bin/newaliases</i> 193# <i>/usr/bin/newaliases</i>
83<codenote>This will install the new aliases. You only need to do this </codenote> 194<comment>(This will install the new aliases. You only need to do this
84<codenote>when you update or install aliases.</codenote> 195when you update or install aliases.)</comment>
85 196
86# <i>/etc/init.d/postfix start</i> 197# <i>/etc/init.d/postfix start</i>
87</pre> 198</pre>
88<p>Now that postfix is running, fire up your favorite console mail client and send yourself an email. I use <c>mutt</c> for all my console mail. Verify that postfix is delivering mail to local users, once that's done, we're on to the next step.</p> 199
89<note>I strongly recommend that you verify this basic postfix setup is functioning before you progress to the next step of the howto. </note> 200<p>
201Now that postfix is running, fire up your favorite console mail client and send
202yourself an email. I use <c>mutt</c> for all my console mail. Verify that
203postfix is delivering mail to local users, once that's done, we're on to the
204next step.
205</p>
206
207<note>
208I strongly recommend that you verify this basic postfix setup is functioning
209before you progress to the next step of the howto.
210</note>
211
90</body> 212</body>
213</section>
91</chapter> 214</chapter>
215
92<chapter> 216<chapter>
93<title>Courier-imap</title> 217<title>Courier-imap</title>
218<section>
94<body> 219<body>
95<pre caption="Install courier-imap" ># <i>emerge courier-imap</i> 220
221<pre caption="Install courier-imap and courier-authlib">
222# <i>emerge courier-imap courier-authlib</i>
96</pre> 223</pre>
224
97<pre caption="Courier-imap configuration" > 225<pre caption="Courier-imap configuration">
98# <i>cd /etc/courier-imap</i> 226# <i>cd /etc/courier-imap</i>
99<codenote>If you want to use the ssl capabilities of courier-imap or pop3, </codenote> 227<comment>(If you want to use the ssl capabilities of courier-imap or pop3,
100<codenote>you'll need to create certs for this purpose.</codenote> 228you'll need to create certs for this purpose.
101<codenote>This step is recommended. If you do not want to use ssl, skip this step.</codenote> 229This step is recommended. If you do not want to use ssl, skip this step.)</comment>
102 230
103# <i>nano -w pop3d.cnf</i> 231# <i>nano -w pop3d.cnf</i>
104# <i>nano -w imapd.cnf</i> 232# <i>nano -w imapd.cnf</i>
105<codenote>Change the C, ST, L, CN, and email parameters to match your server.</codenote> 233<comment>(Change the C, ST, L, CN, and email parameters to match your server.)</comment>
106 234
107# <i>mkpop3dcert</i> 235# <i>mkpop3dcert</i>
108# <i>mkimapdcert</i> 236# <i>mkimapdcert</i>
109</pre> 237</pre>
238
110<pre caption="Start the courier services you need." > 239<pre caption="Start the courier services you need.">
111# <i>/etc/init.d/courier-imapd start</i> 240# <i>/etc/init.d/courier-imapd start</i>
112# <i>/etc/init.d/courier-imapd-ssl start</i> 241# <i>/etc/init.d/courier-imapd-ssl start</i>
113# <i>/etc/init.d/courier-pop3d start</i> 242# <i>/etc/init.d/courier-pop3d start</i>
114# <i>/etc/init.d/courier-pop3d-ssl start</i> 243# <i>/etc/init.d/courier-pop3d-ssl start</i>
115</pre> 244</pre>
116<p>Start up your favorite mail client and verify that all connections you've started work for receiving and sending mail. Now that the basics work, we're going to do a whole bunch of stuff at once to get the rest of the system running. Again, please verify that what we've installed already works before progressing.</p> 245
246<p>
247Start up your favorite mail client and verify that all connections you've
248started work for receiving and sending mail. Now that the basics work, we're
249going to do a whole bunch of stuff at once to get the rest of the system
250running. Again, please verify that what we've installed already works before
251progressing.
252</p>
253
117</body> 254</body>
255</section>
118</chapter> 256</chapter>
257
119<chapter> 258<chapter>
120<title>Cyrus-sasl</title> 259<title>Cyrus-sasl</title>
260<section>
121<body> 261<body>
122<p>Next we're going to install cyrus-sasl. Sasl is going to play the role of actually passing your auth variables to pam, which will in turn pass that information to mysql for authentication of smtp users. For this howto, we'll not even try to verify that sasl is working until mysql is set up and contains a test user. Which is fine since we'll be authenticating against mysql in the end anyway.</p> 262
123<note>Now for some reason, sasl will not play nicely with pam against the shadow file. I banged my head against this problem for, well, a long time. If anyone knows why sasl will not auth against the shadow file in its current gentoo incarnation, please <mail link="ken@kickasskungfu.com" >email me</mail> as I'd love to hear a solution to this.</note> 263<p>
264Next we're going to install cyrus-sasl. Sasl is going to play the role of
265actually passing your auth variables to courier-auth, which will in turn pass that
266information to mysql for authentication of smtp users. For this howto, we'll
267not even try to verify that sasl is working until mysql is set up and contains
268a test user. Which is fine since we'll be authenticating against mysql in the
269end anyway.
270</p>
271
124<pre caption="Configuring and installing the cyrus-sasl ebuild" > 272<pre caption="Configuring and installing the cyrus-sasl ebuild">
125# <i>USE='-ldap -mysql' emerge cyrus-sasl</i> 273# <i>emerge cyrus-sasl</i>
126<codenote>We don't have ldap and we're not using sasl's mysql capabilities </codenote>
127<codenote>so we need to turn them off for this build.</codenote>
128</pre> 274</pre>
275
276<p>
129<p>Next, edit <path>/usr/lib/sasl2/smtp.conf</path>.</p> 277Next, edit <path>/etc/sasl2/smtpd.conf</path>.
278</p>
279
130<pre caption="Starting sasl" > 280<pre caption="Starting sasl">
131# <i>nano -w /usr/lib/sasl2/smtp.conf</i> 281# <i>nano -w /etc/sasl2/smtpd.conf</i>
282mech_list: PLAIN LOGIN
132pwcheck_method: saslauthd 283pwcheck_method: saslauthd
133mech_list: LOGIN PLAIN 284# <i>nano -w /etc/conf.d/saslauthd</i>
134<codenote>It's important to turn off auth mehtods we are not using.</codenote> 285SASLAUTHD_OPTS="${SASLAUTH_MECH} -a rimap -r"
135<codenote>They cause problems for some mail clients.</codenote> 286SASLAUTHD_OPTS="${SASLAUTHD_OPTS} -O localhost"
136# <i>/etc/init.d/saslauthd start</i> 287# <i>/etc/init.d/saslauthd start</i>
137</pre> 288</pre>
289
138</body> 290</body>
291</section>
139</chapter> 292</chapter>
293
140<chapter> 294<chapter>
141<title>SSL Certs for Postfix and Apache</title> 295<title>SSL Certs for Postfix and Apache</title>
296<section>
142<body> 297<body>
298
299<p>
143<p>Next we're going to make a set of ssl certificates for postfix and apache.</p> 300Next we're going to make a set of ssl certificates for postfix and apache.
144<pre> 301</p>
302
303<pre caption="Making ssl certicates">
145# <i>cd /etc/ssl/</i> 304# <i>cd /etc/ssl/</i>
146# <i>nano -w openssl.cnf</i> 305# <i>nano -w openssl.cnf</i>
147 306
148<codenote>Change the following default values for your domain:</codenote> 307<comment>Change the following default values for your domain:</comment>
149countryName_default 308countryName_default
150stateOrProvinceName_default 309stateOrProvinceName_default
151localityName_default 310localityName_default
1520.organizationName_default 3110.organizationName_default
153commonName_default 312commonName_default
154emailAddress_default. 313emailAddress_default.
155 314
156<codenote>If the variables are not already present, just add them in a sensible place.</codenote> 315<comment>(If the variables are not already present, just add them in a sensible place.)</comment>
157
158 316
159# <i>cd misc</i> 317# <i>cd misc</i>
160# <i>nano -w CA.pl</i> 318# <i>nano -w CA.pl</i>
161<codenote>We need to add -nodes to the # create a certificate and</codenote> 319<comment>(We need to add -nodes to the # create a certificate and
162<codenote>#create a certificate request code in order to let our new ssl</codenote> 320#create a certificate request code in order to let our new ssl
163<codenote>certs be loaded without a password. Otherwise when you</codenote> 321certs be loaded without a password. Otherwise when you
164<codenote>reboot your ssl certs will not be available.</codenote> 322reboot your ssl certs will not be available.)</comment>
165 323
166# create a certificate 324# create a certificate
167system (&quot;$REQ -new -nodes -x509 -keyout newreq.pem -out newreq.pem $DAYS&quot;); 325system ("$REQ -new -nodes -x509 -keyout newreq.pem -out newreq.pem $DAYS");
168 326
169# create a certificate request 327# create a certificate request
170system (&quot;$REQ -new -nodes -keyout newreq.pem -out newreq.pem $DAYS&quot;); 328system ("$REQ -new -nodes -keyout newreq.pem -out newreq.pem $DAYS");
171 329
172# <i>./CA.pl -newca</i> 330# <i>./CA.pl -newca</i>
173# <i>./CA.pl -newreq</i> 331# <i>./CA.pl -newreq</i>
174# <i>./CA.pl -sign</i> 332# <i>./CA.pl -sign</i>
175# <i>cp newcert.pem /etc/postfix</i> 333# <i>cp newcert.pem /etc/postfix</i>
176# <i>cp newreq.pem /etc/postfix</i> 334# <i>cp newreq.pem /etc/postfix</i>
177# <i>cp demoCA/cacert.pem /etc/postfix</i> 335# <i>cp demoCA/cacert.pem /etc/postfix</i>
178<codenote>Now we do the same thing for apache</codenote> 336<comment>(Now we do the same thing for apache.)</comment>
179 337
180# <i>openssl req -new > new.cert.csr</i> 338# <i>openssl req -new > new.cert.csr</i>
181# <i>openssl rsa -in privkey.pem -out new.cert.key</i> 339# <i>openssl rsa -in privkey.pem -out new.cert.key</i>
182# <i>openssl x509 -in new.cert.csr -out new.cert.cert -req -signkey new.cert.key -days 365</i> 340# <i>openssl x509 -in new.cert.csr -out new.cert.cert -req -signkey new.cert.key -days 365</i>
183<codenote>Just leave the resulting certificates here for now.</codenote> 341<comment>(Just leave the resulting certificates here for now.
184<codenote>We'll install them after Apache is installed.</codenote> 342We'll install them after Apache is installed.)</comment>
185</pre> 343</pre>
344
186</body> 345</body>
346</section>
347
187</chapter> 348</chapter>
188<chapter> 349<chapter>
189<title>Adding SSL and SASL support to Postfix</title> 350<title>Adding SSL and SASL support to Postfix</title>
351<section>
190<body> 352<body>
191<p>Now edit the postfix config's to make it aware of your new sasl and ssl capabilities. Add the following parameters to the end of the file where they will be easy to find.</p> 353
354<p>
355Now edit the postfix config's to make it aware of your new sasl and ssl
356capabilities. Add the following parameters to the end of the file where they
357will be easy to find.
358</p>
359
192<pre caption="/etc/postfix/main.cf" > 360<pre caption="/etc/postfix/main.cf">
193# <i>nano -w /etc/postfix/main.cf</i> 361# <i>nano -w /etc/postfix/main.cf</i>
194 362
195smtpd_sasl_auth_enable = yes 363smtpd_sasl_auth_enable = yes
196smtpd_sasl2_auth_enable = yes 364smtpd_sasl2_auth_enable = yes
197smtpd_sasl_security_options = noanonymous 365smtpd_sasl_security_options = noanonymous
198broken_sasl_auth_clients = yes 366broken_sasl_auth_clients = yes
199smtpd_sasl_local_domain = 367smtpd_sasl_local_domain =
200 368
201<codenote>The broken_sasl_auth_clients option and the login auth method </codenote> 369<comment>(The broken_sasl_auth_clients option and the login auth method
202<codenote>are for outlook and outlook express only and are undocumented.</codenote> 370are for outlook and outlook express only and are undocumented.
203<codenote>Isn't having to hack software for stupid, broken, M$ BS great?</codenote> 371Isn't having to hack software for stupid, broken, M$ BS great?
204<codenote>smtpd_sasl_local_domain appends a domain name to clients using</codenote> 372smtpd_sasl_local_domain appends a domain name to clients using
205<codenote>smtp-auth. Make sure it's blank or your user names will get</codenote> 373smtp-auth. Make sure it's blank or your user names will get
206<codenote>mangled by postfix and be unable to auth.</codenote> 374mangled by postfix and be unable to auth.)</comment>
207 375
208smtpd_recipient_restrictions = 376smtpd_recipient_restrictions =
209 permit_sasl_authenticated, 377 permit_sasl_authenticated,
210 permit_mynetworks, 378 permit_mynetworks,
211 reject_unauth_destination 379 reject_unauth_destination
219smtpd_tls_loglevel = 3 387smtpd_tls_loglevel = 3
220smtpd_tls_received_header = yes 388smtpd_tls_received_header = yes
221smtpd_tls_session_cache_timeout = 3600s 389smtpd_tls_session_cache_timeout = 3600s
222tls_random_source = dev:/dev/urandom 390tls_random_source = dev:/dev/urandom
223 391
224<codenote>smtpd_tls_auth_only is commented out to ease testing the system. </codenote> 392<comment>(smtpd_tls_auth_only is commented out to ease testing the system.
225<codenote>You can turn this on later if you desire.</codenote> 393You can turn this on later if you desire.)</comment>
226 394
227# <i>postfix reload</i> 395# <i>postfix reload</i>
228</pre> 396</pre>
397
398<p>
229<p>Now we're going to verify that the config's we added were picked up by postfix.</p> 399Now we're going to verify that the config's we added were picked up by postfix.
400</p>
401
230<pre caption="Verifying sasl and tls support" > 402<pre caption="Verifying sasl and tls support">
231# <i>telnet localhost 25</i> 403# <i>telnet localhost 25</i>
232 404
233Trying 127.0.0.1... 405Trying 127.0.0.1...
234Connected to localhost. 406Connected to localhost.
235Escape character is '^]'. 407Escape character is '^]'.
246250-XVERP 418250-XVERP
247250 8BITMIME 419250 8BITMIME
248<i>^]</i> 420<i>^]</i>
249telnet> <i>quit</i> 421telnet> <i>quit</i>
250</pre> 422</pre>
251<p>Verify that the above AUTH and STARTTLS lines now appear in your postfix install. As I said before, as it stands now AUTH will not work. that's because sasl will try to auth against it's sasldb, instead of the shadow file for some unknown reason, which we have not set up. So we're going to just plow through and set up mysql to hold all of our auth and virtual domain information. 423
424<p>
425Verify that the above AUTH and STARTTLS lines now appear in your postfix
426install. As I said before, as it stands now AUTH will not work. that's because
427sasl will try to auth against it's sasldb, instead of the shadow file for some
428unknown reason, which we have not set up. So we're going to just plow through
429and set up mysql to hold all of our auth and virtual domain information.
252 </p> 430</p>
431
253</body> 432</body>
433</section>
254</chapter> 434</chapter>
435
255<chapter> 436<chapter>
256<title>MySQL</title> 437<title>MySQL</title>
438<section>
257<body> 439<body>
258<p>Next we're going to install and configure MySQL. You'll need the <uri link="http://kickasskungfu.com/~ken/genericmailsql.sql" >genericmailsql.sql</uri> dumpfile for this step.</p> 440
441<p>
442Next we're going to install and configure MySQL. You'll need the <uri
443link="http://www.gentoo.org/doc/en/files/genericmailsql.sql">genericmailsql.sql</uri>
444dumpfile for this step.
445</p>
446
259<pre caption="Installing and configuring MySQL" > 447<pre caption="Installing and configuring MySQL">
260# <i>emerge mysql</i> 448# <i>emerge mysql</i>
261 449
262# <i>/usr/bin/mysql_install_db</i> 450# <i>/usr/bin/mysql_install_db</i>
263<codenote>After this command runs follow the onscreen directions</codenote> 451<comment>(After this command runs follow the onscreen directions
264<codenote>for adding a root password with mysql,</codenote> 452for adding a root password with mysql,
265<codenote>not mysqladmin, otherwise your db will be wide open.</codenote> 453not mysqladmin, otherwise your db will be wide open.)</comment>
266 454
267# <i>/etc/init.d/mysql start</i> 455# <i>/etc/init.d/mysql start</i>
268# <i>mysqladmin -u root -p create mailsql</i> 456# <i>mysqladmin -u root -p create mailsql</i>
269# <i>mysql -u root -p mailsql &lt; genericmailsql.sql</i> 457# <i>mysql -u root -p mailsql &lt; genericmailsql.sql</i>
270 458
273 -> <i>ON mailsql.*</i> 461 -> <i>ON mailsql.*</i>
274 -> <i>TO mailsql@localhost</i> 462 -> <i>TO mailsql@localhost</i>
275 -> <i>IDENTIFIED BY '$password';</i> 463 -> <i>IDENTIFIED BY '$password';</i>
276 464
277 -> <i>quit</i> 465 -> <i>quit</i>
278<codenote>Verify that the new mailsql user can connect to the mysql server.</codenote> 466<comment>(Verify that the new mailsql user can connect to the mysql server.)</comment>
279 467
280# <i>mysql -u mailsql -p mailsql</i> 468# <i>mysql -u mailsql -p mailsql</i>
281</pre> 469</pre>
470
471<p>
282<p>Your new database has default values and tables set up for two domains. The following tables are included: 472Your new database has default values and tables set up for two domains. The
473following tables are included:
474</p>
475
283 <ul> 476<ul>
284<li>alias - local email alias and mailman alias information.</li> 477 <li>alias - local email alias and mailman alias information.</li>
285<li>relocated - relocated user email address maps</li> 478 <li>relocated - relocated user email address maps</li>
479 <li>
286<li>transport - default mail transport information for all domains you are hosting</li> 480 transport - default mail transport information for all domains you are
481 hosting
482 </li>
287<li>users - all user account information</li> 483 <li>users - all user account information</li>
288<li>virtual - virtual domain email alias maps</li> 484 <li>virtual - virtual domain email alias maps</li>
289</ul> 485</ul>
290</p> 486
291<pre caption="alias table sample" > 487<pre caption="alias table sample">
292id alias destination 488id alias destination
2931 root foo@bar.com 4891 root foo@bar.com
2942 postmaster foo@bar.com 4902 postmaster foo@bar.com
295</pre> 491</pre>
492
296<pre caption="user table sample" > 493<pre caption="user table sample">
297<codenote>Line wrapped for clarity</codenote> 494<comment>(Line wrapped for clarity.)</comment>
298id email clear name uid gid homedir \ 495id email clear name uid gid homedir \
299 maildir quota postfix 496 maildir quota postfix
30010 foo@virt-bar.org $password realname virtid virtid /home/vmail \ 49710 foo@virt-bar.org $password realname virtid virtid /home/vmail \
301 /home/vmail/virt-bar.org/foo/.maildir/ y 498 /home/vmail/virt-bar.org/foo/.maildir/ y
30213 foo@bar.com $password realname localid localid /home/foo \ 49913 foo@bar.com $password realname localid localid /home/foo \
303 /home/foo/.maildir/ y 500 /home/foo/.maildir/ y
304</pre> 501</pre>
502
503<p>
504The values of the <c>virtid</c> uid and gid should be those of the <c>vmail</c>
505user and group.
506</p>
507
305<pre caption="transport table sample" > 508<pre caption="transport table sample">
306id domain destination 509id domain destination
3071 bar.com local: 5101 bar.com local:
3082 virt-bar.org virtual: 5112 virt-bar.org virtual:
309</pre> 512</pre>
513
310<pre caption="virtual table sample" > 514<pre caption="virtual table sample">
311id email destination 515id email destination
3123 root@virt-bar.org other@email.address 5163 root@virt-bar.org other@email.address
313</pre> 517</pre>
518
314</body> 519</body>
520</section>
315</chapter> 521</chapter>
522
316<chapter> 523<chapter>
317<title>Apache and phpMyAdmin</title> 524<title>Apache and phpMyAdmin</title>
525<section>
318<body> 526<body>
527
528<p>
319<p>Next we'll set up apache and add an interface to interact with the database more easily. </p> 529Next we'll set up apache and add an interface to interact with the database
530more easily.
531</p>
532
320<pre caption="Setting up apache and phpmyadmin" > 533<pre caption="Setting up apache and phpmyadmin">
321# <i>emerge apache mod_php phpmyadmin</i> 534# <i>emerge apache mod_php phpmyadmin</i>
322</pre> 535</pre>
323<p>There are plenty of guides out there about how to set up apache with php. Like this one: <uri>http://www.linuxguruz.org/z.php?id=31</uri>. There are also numerous posts on <uri>http://forums.gentoo.org</uri> detailing how to solve problems with the installation (search for 'apache php'). So, that said, I'm not going to cover it here. Set up the apache and php installs, then continue with this howto. Now, a word for the wise: .htaccess the directory that you put phpmyadmin in. If you do not do this, search engine spiders will come along and index the page which in turn will mean that anyone will be able to find your phpmyadmin page via google and in turn be able to come change your database however they want which is <e>BAD!</e> There are many howtos on this including: <uri>http://docs.csoft.net/micro/black-htaccess.html</uri>.</p> 536
324<p>Now we're going to install the Apache certificates we made previously. The Apache-SSL directives that you need to use the resulting cert are: 537<p>
538There are plenty of guides out there about how to set up apache with php. Like
539this one: <uri>http://www.linuxguruz.org/z.php?id=31</uri>. There are also
540numerous posts on <uri>http://forums.gentoo.org</uri> detailing how to solve
541problems with the installation (search for 'apache php'). So, that said, I'm
542not going to cover it here. Set up the apache and php installs, then continue
543with this howto. Now, a word for the wise: .htaccess the directory that you put
544phpmyadmin in. If you do not do this, search engine spiders will come along and
545index the page which in turn will mean that anyone will be able to find your
546phpmyadmin page via google and in turn be able to come change your database
547however they want which is <e>BAD!</e> There are many howtos on this
548including: <uri>http://www.csoft.net/docs/micro/htaccess.html.en</uri>.
549</p>
550
551<p>
552Now we're going to install the Apache certificates we made previously. The
553Apache-SSL directives that you need to use the resulting cert are:
554</p>
555
325 <ul> 556<ul>
326<li>SSLCertificateFile /path/to/certs/new.cert.cert</li> 557 <li>SSLCertificateFile /path/to/certs/new.cert.cert</li>
327<li>SSLCertificateKeyFile /path/to/certs/new.cert.key</li> 558 <li>SSLCertificateKeyFile /path/to/certs/new.cert.key</li>
328</ul> 559</ul>
329</p> 560
330<pre caption="Install Apache SSL certificates" > 561<pre caption="Install Apache SSL certificates">
331# <i>cp /etc/ssl/misc/new.cert.cert /etc/apache/conf/ssl/</i> 562# <i>cp /etc/ssl/misc/new.cert.cert /etc/apache/conf/ssl/</i>
332# <i>cp /etc/ssl/misc/new.cert.key /etc/apache/conf/ssl/</i> 563# <i>cp /etc/ssl/misc/new.cert.key /etc/apache/conf/ssl/</i>
333# <i>nano -w /etc/apache/conf/vhosts/ssl.default-vhost.conf</i> 564# <i>nano -w /etc/apache/conf/vhosts/ssl.default-vhost.conf</i>
565
334<codenote>Change the following parameters</codenote> 566<comment>(Change the following parameters)</comment>
335 567
336ServerName host.domain.name 568ServerName host.domain.name
337ServerAdmin your@email.address 569ServerAdmin your@email.address
338SSLCertificateFile /etc/apache/conf/ssl/new.cert.cert 570SSLCertificateFile /etc/apache/conf/ssl/new.cert.cert
339SSLCertificateKeyFile /etc/apache/conf/ssl/new.cert.key 571SSLCertificateKeyFile /etc/apache/conf/ssl/new.cert.key
340 572
341# <i>/etc/init.d/apache restart</i> 573# <i>/etc/init.d/apache restart</i>
342</pre> 574</pre>
343<note>If you have an existing apache install, you'll likely have to perform a full server reboot to install your new certificates. Check your logs to verify apache restarted successfully.</note> 575
576<note>
577If you have an existing apache install, you'll likely have to perform a full
578server reboot to install your new certificates. Check your logs to verify
579apache restarted successfully.
580</note>
581
582<p>
344<p>Next, configure phpMyAdmin.</p> 583Next, configure phpMyAdmin.
584</p>
585
345<pre caption="Configuring phpMyAdmin" > 586<pre caption="Configuring phpMyAdmin">
346# <i>nano -w /var/www/localhost/htdocs/phpmyadmin/config.inc.php</i> 587# <i>nano -w /var/www/localhost/htdocs/phpmyadmin/config.inc.php</i>
347<codenote>Change the following parameters</codenote> 588<comment>(Change the following parameters.)</comment>
348 589
349$cfg['Servers'][$i]['host'] = 'localhost'; // MySQL hostname 590$cfg['Servers'][$i]['host'] = 'localhost'; // MySQL hostname
350$cfg['Servers'][$i]['controluser'] = 'mailsql'; // MySQL control user settings 591$cfg['Servers'][$i]['controluser'] = 'mailsql'; // MySQL control user settings
351 // (this user must have read-only 592 // (this user must have read-only
352$cfg['Servers'][$i]['controlpass'] = '$password'; // access to the &quot;mysql/user&quot; 593$cfg['Servers'][$i]['controlpass'] = '$password'; // access to the "mysql/user"
353 // and &quot;mysql/db&quot; tables) 594 // and "mysql/db" tables)
354$cfg['Servers'][$i]['user'] = 'mailsql'; // MySQL user 595$cfg['Servers'][$i]['user'] = 'mailsql'; // MySQL user
355$cfg['Servers'][$i]['password'] = '$password'; // MySQL password 596$cfg['Servers'][$i]['password'] = '$password'; // MySQL password
356</pre> 597</pre>
357<p>Now enter the phpmyadmin page and browse the tables. You'll want to add in your local aliases, edit your user table to add a test user, and change your transport table to add information about your domains. The default values supplied with the dumpfile should be a sufficient guide to what values need to go where. Make sure that if you put information in the database that it is accurate. For instance, make sure the local users home dir exists and that the correct uid/gid values are in place. The maildirs should be created automatically by postfix when the user receives their first email. So, in general, it's a good idea to send a &quot;Welcome&quot; mail to a new user after you setup their account to make sure the .maildir gets created. </p> 598
599<p>
600Now enter the phpmyadmin page and browse the tables. You'll want to add in your
601local aliases, edit your user table to add a test user, and change your
602transport table to add information about your domains. The default values
603supplied with the dumpfile should be a sufficient guide to what values need to
604go where. Make sure that if you put information in the database that it is
605accurate. For instance, make sure the local users home dir exists and that the
606correct uid/gid values are in place. The maildirs should be created
607automatically by postfix when the user receives their first email. So, in
608general, it's a good idea to send a "Welcome" mail to a new user
609after you setup their account to make sure the .maildir gets created.
610</p>
611
358</body> 612</body>
613</section>
359</chapter> 614</chapter>
615
360<chapter> 616<chapter>
361<title>The vmail user</title> 617<title>The vmail user</title>
618<section>
362<body> 619<body>
363<p>At this point you may be wondering what user and directory to use for virtual mail users, and rightly so. Let's set that up.</p> 620
621<p>
622At this point you may be wondering what user and directory to use for virtual
623mail users, and rightly so. Let's set that up.
624</p>
625
364<pre caption="Adding the vmail user" > 626<pre caption="Adding the vmail user">
365# <i>adduser -d /home/vmail -s /bin/false vmail</i> 627# <i>adduser -d /home/vmail -s /bin/false vmail</i>
366# <i>uid=`cat /etc/passwd | grep vmail | cut -f 3 -d :`</i> 628# <i>uid=`cat /etc/passwd | grep vmail | cut -f 3 -d :`</i>
367# <i>groupadd -g $uid vmail</i> 629# <i>groupadd -g $uid vmail</i>
368# <i>mkdir /home/vmail</i> 630# <i>mkdir /home/vmail</i>
369# <i>chown vmail. /home/vmail</i> 631# <i>chown vmail: /home/vmail</i>
632</pre>
633
634<p>
635So now when you're setting up vmail accounts, use the vmail uid, gid, and
636homedir. When you're setting up local accounts, use that users uid, gid, and
637homedir. We've been meaning to create a php admin page for this setup but
638haven't gotten around to it yet, as phpmyadmin generally works fine for us.
370</pre> 639</p>
371<p>So now when you're setting up vmail accounts, use the vmail uid, gid, and homedir. When you're setting up local accounts, use that users uid, gid, and homedir. We've been meaning to create a php admin page for this setup but haven't gotten around to it yet, as phpmyadmin generally works fine for us.</p> 640
372</body> 641</body>
642</section>
373</chapter> 643</chapter>
644
374<chapter> 645<chapter>
375<title>Configuring MySQL Authentication and vhosts</title> 646<title>Configuring MySQL Authentication and vhosts</title>
647<section>
376<body> 648<body>
377<p>Next we'll reconfigure our authentication to use the mailsql database in courier-imap and postfix. In all of the following examples, replace $password with the password you set for the mailsql mysql user.</p> 649
378<pre> 650<p>
379# <i>emerge pam_mysql</i> 651Next we'll reconfigure our authentication to use the mailsql database in
380# <i>nano -w /etc/pam.d/imap</i> 652courier-imap and postfix. In all of the following examples, replace
381<codenote>Comment out the existing auth lines and add the following as shown.</codenote> 653<c>$password</c> with the password you set for the mailsql mysql user.
382
383#auth required pam_nologin.so
384#auth required pam_stack.so service=system-auth
385#account required pam_stack.so service=system-auth
386#session required pam_stack.so service=system-auth
387
388auth optional pam_mysql.so host=localhost db=mailsql user=mailsql \
389 passwd=$password table=users usercolumn=email passwdcolumn=clear crypt=0
390account required pam_mysql.so host=localhost db=mailsql user=mailsql \
391 passwd=$password table=users usercolumn=email passwdcolumn=clear crypt=0
392
393# <i>nano -w /etc/pam.d/pop3</i>
394# <i>nano -w /etc/pam.d/smtp</i>
395<codenote>Make the same changes to the pop3 and smtp files</codenote>
396</pre> 654</p>
397<p>Next, we need to edit courier's authentication config's.</p> 655
398<pre> 656<pre caption="Configuring authentication">
399# <i>nano -w /etc/courier-imap/authdaemonrc</i> 657# <i>nano -w /etc/courier/authlib/authdaemonrc</i>
400authmodulelist=&quot;authmysql authpam&quot; 658authmodulelist="authmysql authpam"
401 659
402# <i>nano -w /etc/courier-imap/authdaemond.conf</i>
403AUTHDAEMOND=&quot;authdaemond.mysql&quot;
404
405# <i>nano -w /etc/courier-imap/authmysqlrc</i> 660# <i>nano -w /etc/courier/authlib/authmysqlrc</i>
406MYSQL_SERVER localhost 661MYSQL_SERVER localhost
407MYSQL_USERNAME mailsql 662MYSQL_USERNAME mailsql
408MYSQL_PASSWORD $password 663MYSQL_PASSWORD $password
409MYSQL_DATABASE mailsql 664MYSQL_DATABASE mailsql
410MYSQL_USER_TABLE users 665MYSQL_USER_TABLE users
411#MYSQL_CRYPT_PWFIELD crypt (make sure this is commented out since we're storing plaintext) 666<comment>(Make sure the following line is commented out since we're storing plaintext.)</comment>
667#MYSQL_CRYPT_PWFIELD crypt
412MYSQL_CLEAR_PWFIELD clear 668MYSQL_CLEAR_PWFIELD clear
413MYSQL_UID_FIELD uid 669MYSQL_UID_FIELD uid
414MYSQL_GID_FIELD gid 670MYSQL_GID_FIELD gid
415MYSQL_LOGIN_FIELD email 671MYSQL_LOGIN_FIELD email
416MYSQL_HOME_FIELD homedir 672MYSQL_HOME_FIELD homedir
417MYSQL_NAME_FIELD name 673MYSQL_NAME_FIELD name
418MYSQL_MAILDIR_FIELD maildir 674MYSQL_MAILDIR_FIELD maildir
419 675
420# <i>/etc/init.d/authdaemond restart</i> 676# <i>/etc/init.d/courier-authlib restart</i>
421# <i>/etc/init.d/saslauthd restart</i> 677# <i>/etc/init.d/saslauthd restart</i>
422</pre> 678</pre>
423<p>We're almost there I promise! Next, set up the rest of the necessary config's for postfix to interract with the database for all it's other transport needs.</p> 679
680<p>
681We're almost there I promise! Next, set up the rest of the necessary config's
682for postfix to interract with the database for all it's other transport needs.
683</p>
684
424<pre caption="/etc/postfix/mysql-aliases.cf" > 685<pre caption="/etc/postfix/mysql-aliases.cf">
425# <i>nano -w /etc/postfix/mysql-aliases.cf</i> 686# <i>nano -w /etc/postfix/mysql-aliases.cf</i>
426# mysql-aliases.cf 687# mysql-aliases.cf
427 688
428user = mailsql 689user = mailsql
429password = $password 690password = $password
431table = alias 692table = alias
432select_field = destination 693select_field = destination
433where_field = alias 694where_field = alias
434hosts = unix:/var/run/mysqld/mysqld.sock 695hosts = unix:/var/run/mysqld/mysqld.sock
435</pre> 696</pre>
697
436<pre caption="/etc/postfix/mysql-relocated.cf" > 698<pre caption="/etc/postfix/mysql-relocated.cf">
437# <i>nano -w /etc/postfix/mysql-relocated.cf</i> 699# <i>nano -w /etc/postfix/mysql-relocated.cf</i>
438# mysql-relocated.cf 700# mysql-relocated.cf
439 701
440user = mailsql 702user = mailsql
441password = $password 703password = $password
443table = relocated 705table = relocated
444select_field = destination 706select_field = destination
445where_field = email 707where_field = email
446hosts = unix:/var/run/mysqld/mysqld.sock 708hosts = unix:/var/run/mysqld/mysqld.sock
447</pre> 709</pre>
710
448<pre caption="/etc/postfix/mysql-transport.cf (optional)" > 711<pre caption="/etc/postfix/mysql-transport.cf (optional)">
449# <i>nano -w /etc/postfix/mysql-transport.cf</i> 712# <i>nano -w /etc/postfix/mysql-transport.cf</i>
450# mysql-transport.cf 713# mysql-transport.cf
451 714
452user = mailsql 715user = mailsql
453password = $password 716password = $password
455table = transport 718table = transport
456select_field = destination 719select_field = destination
457where_field = domain 720where_field = domain
458hosts = unix:/var/run/mysqld/mysqld.sock 721hosts = unix:/var/run/mysqld/mysqld.sock
459</pre> 722</pre>
723
460<pre caption="/etc/postfix/mysql-virtual-gid.cf (optional)" > 724<pre caption="/etc/postfix/mysql-virtual-gid.cf (optional)">
461# <i>nano -w /etc/postfix/mysql-virtual-gid.cf</i> 725# <i>nano -w /etc/postfix/mysql-virtual-gid.cf</i>
462#myql-virtual-gid.cf 726#myql-virtual-gid.cf
463 727
464user = mailsql 728user = mailsql
465password = $password 729password = $password
468select_field = gid 732select_field = gid
469where_field = email 733where_field = email
470additional_conditions = and postfix = 'y' 734additional_conditions = and postfix = 'y'
471hosts = unix:/var/run/mysqld/mysqld.sock 735hosts = unix:/var/run/mysqld/mysqld.sock
472</pre> 736</pre>
737
473<pre caption="/etc/postfix/mysql-virtual-maps.cf" > 738<pre caption="/etc/postfix/mysql-virtual-maps.cf">
474# <i>nano -w /etc/postfix/mysql-virtual-maps.cf</i> 739# <i>nano -w /etc/postfix/mysql-virtual-maps.cf</i>
475#myql-virtual-maps.cf 740#myql-virtual-maps.cf
476 741
477user = mailsql 742user = mailsql
478password = $password 743password = $password
481select_field = maildir 746select_field = maildir
482where_field = email 747where_field = email
483additional_conditions = and postfix = 'y' 748additional_conditions = and postfix = 'y'
484hosts = unix:/var/run/mysqld/mysqld.sock 749hosts = unix:/var/run/mysqld/mysqld.sock
485</pre> 750</pre>
751
486<pre caption="/etc/postfix/mysql-virtual-uid.cf (optional)" > 752<pre caption="/etc/postfix/mysql-virtual-uid.cf (optional)">
487# <i>nano -w /etc/postfix/mysql-virtual-uid.cf</i> 753# <i>nano -w /etc/postfix/mysql-virtual-uid.cf</i>
488# mysql-virtual-uid.cf 754# mysql-virtual-uid.cf
489 755
490user = mailsql 756user = mailsql
491password = $password 757password = $password
494select_field = uid 760select_field = uid
495where_field = email 761where_field = email
496additional_conditions = and postfix = 'y' 762additional_conditions = and postfix = 'y'
497hosts = unix:/var/run/mysqld/mysqld.sock 763hosts = unix:/var/run/mysqld/mysqld.sock
498</pre> 764</pre>
765
499<pre caption="/etc/postfix/mysql-virtual.cf" > 766<pre caption="/etc/postfix/mysql-virtual.cf">
500# <i>nano -w /etc/postfix/mysql-virtual.cf</i> 767# <i>nano -w /etc/postfix/mysql-virtual.cf</i>
501# mysql-virtual.cf 768# mysql-virtual.cf
502 769
503user = mailsql 770user = mailsql
504password = $password 771password = $password
506table = virtual 773table = virtual
507select_field = destination 774select_field = destination
508where_field = email 775where_field = email
509hosts = unix:/var/run/mysqld/mysqld.sock 776hosts = unix:/var/run/mysqld/mysqld.sock
510</pre> 777</pre>
778
779<p>
511<p>Lastly, edit <path>/etc/postfix/main.cf</path> one more time.</p> 780Lastly, edit <path>/etc/postfix/main.cf</path> one more time.
781</p>
782
512<pre caption="/etc/postfix/main.cf" > 783<pre caption="/etc/postfix/main.cf">
513# <i>nano -w /etc/postfix/main.cf</i> 784# <i>nano -w /etc/postfix/main.cf</i>
514alias_maps = mysql:/etc/postfix/mysql-aliases.cf 785alias_maps = mysql:/etc/postfix/mysql-aliases.cf
515relocated_maps = mysql:/etc/postfix/mysql-relocated.cf 786relocated_maps = mysql:/etc/postfix/mysql-relocated.cf
516 787
517local_transport = local 788local_transport = local
528virtual_alias_maps = mysql:/etc/postfix/mysql-virtual.cf 799virtual_alias_maps = mysql:/etc/postfix/mysql-virtual.cf
529virtual_uid_maps = static:$vmail-uid 800virtual_uid_maps = static:$vmail-uid
530virtual_mailbox_base = / 801virtual_mailbox_base = /
531#virtual_mailbox_limit = 802#virtual_mailbox_limit =
532</pre> 803</pre>
533<p>As of Postfix 2.0.x, there were a number of significant changes over the 1.1.x release. Notably the transport, virtual-gid, and virtual-uid tables are no longer necessary. The tables are still included if you wish to use them.</p> 804
805<p>
806For security reasons you should change the permissions of the various
807<path>/etc/mail/mysql-*.cf</path>:
808</p>
809
810<pre caption="Changing file permission">
811# <i>chmod 640 /etc/postfix/mysql-*.cf</i>
812# <i>chgrp postfix /etc/postfix/mysql-*.cf</i>
813</pre>
814
815<p>
816As of Postfix 2.0.x, there were a number of significant changes over the 1.1.x
817release. Notably the transport, virtual-gid, and virtual-uid tables are no
818longer necessary. The tables are still included if you wish to use them.
819</p>
820
821<note>
534<note>It is recommended tha you read VIRTUAL_README included with the postfix doc's for more information.</note> 822It is recommended that you read VIRTUAL_README included with the postfix docs
823for more information.
824</note>
825
826<pre caption="Make postfix reload its tables">
535<pre># <i>postfix reload</i> 827# <i>postfix reload</i>
828</pre>
829
830<p>
831Now, if all went well, you should have a functioning mailhost. Users should be
832able to authenticate against the sql database, using their full email address,
833for pop3, imap, and smtp. I would highly suggest that you verify that
834everything is working at this point. If you run into problems (with as many
835things as this setup has going on, it's likely that you will) check the
836troubleshooting section of this howto.
536</pre> 837</p>
537<p>Now, if all went well, you should have a functioning mailhost. Users should be able to authenticate against the sql database, using their full email address, for pop3, imap, and smtp. I would highly suggest that you verify that everything is working at this point. If you run into problems (with as many things as this setup has going on, it's likely that you will) check the troubleshooting section of this howto.</p> 838
538</body> 839</body>
840</section>
539</chapter> 841</chapter>
842
540<chapter> 843<chapter>
541<title>Squirrelmail</title> 844<title>Squirrelmail</title>
845<section>
542<body> 846<body>
543<pre> 847
848<pre caption="Install squirrelmail">
544# <i>emerge squirrelmail</i> 849# <i>emerge squirrelmail</i>
545<codenote>I like to add a link to the htdocs space for a shorter url.</codenote> 850<comment>(Install squirrelmail to localhost so that it's accessed by http://localhost/mail)
851(Substitute 1.4.3a-r2 with the version you use)</comment>
546 852
547# <i>ln -s /var/www/localhost/htdocs/squirrelmail/ /var/www/localhost/htdocs/mail</i> 853# <i>webapp-config -I -h localhost -d /mail squirrelmail 1.4.3a-r2</i>
548# <i>cd /var/www/localhost/htdocs/mail/conf</i> 854# <i>cd /var/www/localhost/htdocs/mail/config</i>
549# <i>./conf.pl</i> 855# <i>perl ./conf.pl</i>
550<codenote>Change your Organization, Server, and Folder settings for squirrelmail.</codenote> 856<comment>(Change your Organization, Server, and Folder settings for squirrelmail.
551<codenote>Now you should be able to login to squirrelmail, again - with your full email address,</codenote> 857Now you should be able to login to squirrelmail, again - with your full email address,
552<codenote>and use your new webmail setup.</codenote> 858and use your new webmail setup.)</comment>
553</pre> 859</pre>
860
554</body> 861</body>
862</section>
555</chapter> 863</chapter>
864
556<chapter> 865<chapter>
557<title>Mailman</title> 866<title>Mailman</title>
867<section>
558<body> 868<body>
559<p>Last step: mailman. The new version of mailman has very nice virtual domain support, which is why I use it, not to mention it's really a great package. To get this package installed and working correctly for virtual domains is going to require a bit of hacking. I really recommend reading all of the mailman documentation, including README.POSTFIX.gz, to understand what's being done here.</p> 869
560<p>One further note, current versions of mailman install to /usr/local/mailman. If you're like me and wish to change the default install location, it can be overridden in the ebuild filoe by changing the INSTALLDIR variable.</p> 870<p>
871Last step: mailman. The new version of mailman has very nice virtual domain
872support, which is why I use it, not to mention it's really a great package. To
873get this package installed and working correctly for virtual domains is going
874to require a bit of hacking. I really recommend reading all of the mailman
875documentation, including README.POSTFIX.gz, to understand what's being done
876here.
877</p>
878
879<p>
880One further note, current versions of mailman install to /usr/local/mailman. If
881you're like me and wish to change the default install location, it can be
882overridden in the ebuild filoe by changing the INSTALLDIR variable.
883</p>
884
561<pre caption="/usr/portage/net-mail/mailman/mailman-$ver.ebuild"> 885<pre caption="/usr/portage/net-mail/mailman/mailman-$ver.ebuild">
562# <i>nano -w /usr/portage/net-mail/mailman/mailman-$ver.ebuild</i> 886# <i>nano -w /usr/portage/net-mail/mailman/mailman-$ver.ebuild</i>
563MAILGID="280" 887MAILGID="280"
564<codenote>Set MAILGID to the mailman group instead of nobody</codenote> 888<comment>(Set MAILGID to the mailman group instead of nobody
565<codenote>This is needed for postfix integration</codenote> 889This is needed for postfix integration.)</comment>
566</pre>
567<pre> 890</pre>
891
892<pre caption="Install mailman">
568# <i>emerge mailman</i> 893# <i>emerge mailman</i>
569<codenote>This package is currently masked as well, so you'll need to unmask it or give </codenote> 894<comment>(This package is currently masked as well, so you'll need to unmask it or give
570<codenote>emerge an explicit path to the ebuild. Once it's installed, follow the directions</codenote> 895emerge an explicit path to the ebuild. Once it's installed, follow the directions
571<codenote>in the README.gentoo.gz *except* do not add your aliases to /etc/mail/aliases.</codenote> 896in the README.gentoo.gz *except* do not add your aliases to /etc/mail/aliases.
572<codenote>We will instead be linking the entire alias db into postfix.</codenote> 897We will instead be linking the entire alias db into postfix.)</comment>
573 898
574# <i>zless /usr/share/doc/mailman-$ver/README.gentoo.gz</i> 899# <i>zless /usr/share/doc/mailman-$ver/README.gentoo.gz</i>
575</pre> 900</pre>
901
576<pre caption="Setting defaults: Mailman/Defaults.py"> 902<pre caption="Setting defaults: Mailman/Defaults.py">
577# <i> nano -w /var/mailman/Mailman/Defaults.py</i> 903# <i> nano -w /var/mailman/Mailman/Defaults.py</i>
578<codenote>Change the values below to reflect your primary domain, virtuals will be set next.</codenote> 904<comment>(Change the values below to reflect your primary domain, virtuals will be set next.)</comment>
579DEFAULT_EMAIL_HOST = 'domain.com' 905DEFAULT_EMAIL_HOST = 'domain.com'
580DEFAULT_URL_HOST = 'www.domain.com' 906DEFAULT_URL_HOST = 'www.domain.com'
581</pre> 907</pre>
908
582<pre caption="mailman config: mm_cfg.py"> 909<pre caption="mailman config: mm_cfg.py">
583# <i>nano -w /var/mailman/Mailman/mm_cfg.py</i> 910# <i>nano -w /var/mailman/Mailman/mm_cfg.py</i>
584MTA = "Postfix" 911MTA = "Postfix"
585POSTFIX_STYLE_VIRTUAL_DOMAINS = ['virt-domain.com', 'virt.domain2.com'] 912POSTFIX_STYLE_VIRTUAL_DOMAINS = ['virt-domain.com', 'virt.domain2.com']
586add_virtualhost('www.virt.domain.com', 'virt.domain.com') 913add_virtualhost('www.virt.domain.com', 'virt.domain.com')
587add_virtualhost('www.virt.domain2.com', 'virt.domain2.com') 914add_virtualhost('www.virt.domain2.com', 'virt.domain2.com')
588<codenote>This is required for your virtual domains for mailman to function.</codenote> 915<comment>(This is required for your virtual domains for mailman to function.)</comment>
589</pre>
590<pre> 916</pre>
917
918<pre caption="And last but not least">
591<codenote>Once that's finished, add your first list.</codenote> 919<comment>(Once that's finished, add your first list.)</comment>
592 920
593# <i>su mailman</i> 921# <i>su mailman</i>
594# <i>cd ~</i> 922# <i>cd ~</i>
595# <i>bin/newlist test</i> 923# <i>bin/newlist test</i>
596Enter the email of the person running the list: your@email.address 924Enter the email of the person running the list: <i>your@email.address</i>
597Initial test password: 925Initial test password:
598Hit enter to continue with test owner notification... 926Hit enter to continue with test owner notification...
599<codenote>Virtual domain lists may be specified with</codenote> 927<comment>(Virtual domain lists may be specified with
600<codenote>list@domain.com style list names</codenote> 928list@domain.com style list names.)</comment>
601# <i>bin/genaliases</i> 929# <i>bin/genaliases</i>
602<codenote>Now that your aliases have been generated,</codenote> 930<comment>(Now that your aliases have been generated,
603<codenote>verify that they were added successfully.</codenote> 931verify that they were added successfully.)</comment>
604 932
605# <i>nano -w data/aliases</i> 933# <i>nano -w data/aliases</i>
606# STANZA START: test 934# STANZA START: test
607# CREATED: 935# CREATED:
608test: "|/var/mailman/mail/mailman post test" 936test: "|/var/mailman/mail/mailman post test"
617test-unsubscribe: "|/var/mailman/mail/mailman unsubscribe test" 945test-unsubscribe: "|/var/mailman/mail/mailman unsubscribe test"
618# STANZA END: test 946# STANZA END: test
619 947
620# <i>/etc/init.d/mailman start</i> 948# <i>/etc/init.d/mailman start</i>
621# <i>rc-update add mailman default</i> 949# <i>rc-update add mailman default</i>
622<codenote>To start mailman at once and on every reboot</codenote> 950<comment>(To start mailman at once and on every reboot.)</comment>
623</pre> 951</pre>
624 952
625<pre caption="Adding mailman alias support to postfix"> 953<pre caption="Adding mailman alias support to postfix">
626# <i>nano -w /etc/postfix/main.cf</i> 954# <i>nano -w /etc/postfix/main.cf</i>
627owner_request_special = no 955owner_request_special = no
628recipient_delimiter = + 956recipient_delimiter = +
629<codenote>Read README.POSTFIX.gz for details on this</codenote> 957<comment>(Read README.POSTFIX.gz for details on this.)</comment>
630 958
631alias_maps = 959alias_maps =
632 hash:/var/mailman/data/aliases, 960 hash:/var/mailman/data/aliases,
633 mysql:/etc/postfix/mysql-aliases.cf 961 mysql:/etc/postfix/mysql-aliases.cf
634 962
635virtual_alias_maps = 963virtual_alias_maps =
636 hash:/var/mailman/data/virtual-mailman, 964 hash:/var/mailman/data/virtual-mailman,
637 mysql:/etc/postfix/mysql-virtual.cf 965 mysql:/etc/postfix/mysql-virtual.cf
638<codenote>This adds mailman alias file support to postfix</codenote> 966<comment>(This adds mailman alias file support to postfix
639<codenote>You may of course use the mysql tables for this,</codenote> 967You may of course use the mysql tables for this,
640<codenote>but I hate doing that by hand. Also, if you are not</codenote> 968but I hate doing that by hand. Also, if you are not
641<codenote>using virtual domains, adding the virtual alias maps</codenote> 969using virtual domains, adding the virtual alias maps
642<codenote>to postfix may cause problems, be warned.</codenote> 970to postfix may cause problems, be warned.)</comment>
971</pre>
972
973<p>
974You should now be able to setup mailing lists for any domain on your box. Last
975note on this, make sure you run all mailman commands as the user mailman (<c>su
976mailman</c>) or else the permissions will be wrong and you'll have to fix them.
977Read the mailman doc's for more information on setting up and managing mailman
978lists.
643</pre> 979</p>
644<p> You should now be able to setup mailing lists for any domain on your box. Last note on this, make sure you run all mailman commands as the user mailman (<c>su mailman</c>) or else the permissions will be wrong and you'll have to fix them. Read the mailman doc's for more information on setting up and managing mailman lists.</p> 980
645</body> 981</body>
982</section>
646</chapter> 983</chapter>
984
647<chapter> 985<chapter>
648<title>Content Filtering and Anti-Virus</title> 986<title>Content Filtering and Anti-Virus</title>
649<body><p>Coming soon...it would be done already but I need some perl help and testing to make it so. If you'd like to volunteer for that, please email me.</p></body> 987<section>
988<body>
989
990<p>
991For content filtering and Anti-Virus, please consult our <uri
992link="/doc/en/mailfilter-guide.xml">mail filtering gateway guide</uri>.
993</p>
994
995</body>
996</section>
650</chapter> 997</chapter>
998
651<chapter> 999<chapter>
652<title>Wrap Up</title> 1000<title>Wrap Up</title>
1001<section>
653<body> 1002<body>
654<p>Ok, you're all set, edit <path>/etc/postfix/master.cf</path> and turn off verbose mode for production use. You'll probably also want to add the services to your startup routine to make sure everything comes back up on a reboot. Make sure to add all the services you're using - apache, mysql, saslauthd, postfix, courier-imapd, courier-imapd-ssl, courier-pop3d, and courier-pop3d-ssl are all up to your decision on what access you want to provide. I generally have all the services enabled.</p> 1003
1004<p>
1005Ok, you're all set, edit <path>/etc/postfix/master.cf</path> and turn off
1006verbose mode for production use. You'll probably also want to add the services
1007to your startup routine to make sure everything comes back up on a reboot. Make
1008sure to add all the services you're using - apache, mysql, saslauthd, postfix,
1009courier-imapd, courier-imapd-ssl, courier-pop3d, and courier-pop3d-ssl are all
1010up to your decision on what access you want to provide. I generally have all
1011the services enabled.
1012</p>
1013
655<pre caption="Wrap up" > 1014<pre caption="Wrap up">
656# <i>postfix reload</i> 1015# <i>postfix reload</i>
657# <i>rc-update add $service default</i> 1016# <i>rc-update add $service default</i>
658</pre> 1017</pre>
1018
659<p> 1019<p>
660<e>Have fun!</e> 1020<e>Have fun!</e>
661</p> 1021</p>
1022
662</body> 1023</body>
1024</section>
663</chapter> 1025</chapter>
1026
664<chapter> 1027<chapter>
665<title>Troubleshooting</title> 1028<title>Troubleshooting</title>
666<section> 1029<section>
667<title>Introduction</title> 1030<title>Introduction</title>
668<body> 1031<body>
669<p>Troubleshooting: This is a short troubleshooting guide for the set up we've detailed how to install here. It is not exhaustive, but meant as a place to get you started in figuring out problems. With a complicated setup such as this, it's imperative that you narrow down the problem to the particular component that is malfunctioning. In general I do that by following a few steps. Start from the base of the system and work your way up, ruling out components that work along the way until you discover which component is having the problem.</p> 1032
1033<p>
1034Troubleshooting: This is a short troubleshooting guide for the set up we've
1035detailed how to install here. It is not exhaustive, but meant as a place to get
1036you started in figuring out problems. With a complicated setup such as this,
1037it's imperative that you narrow down the problem to the particular component
1038that is malfunctioning. In general I do that by following a few steps. Start
1039from the base of the system and work your way up, ruling out components that
1040work along the way until you discover which component is having the problem.
1041</p>
1042
670</body> 1043</body>
671</section>
672<section> 1044</section>
1045<section>
673<title>Step 1: Check your config files.</title> 1046<title>Step 1: Check your config files</title>
674<body> 1047<body>
675<p>Typos are killers, especially when dealing with authentication systems. Scan your config's and mailsql database for typo's. You can debug all you want, but if you're not passing the right information back and forth to your mail system, it's not going to work. If you make a change to a config file for a service, make sure you restart that service so that the config change gets picked up.</p> 1048
676<pre> 1049<p>
1050Typos are killers, especially when dealing with authentication systems. Scan
1051your config's and mailsql database for typo's. You can debug all you want, but
1052if you're not passing the right information back and forth to your mail system,
1053it's not going to work. If you make a change to a config file for a service,
1054make sure you restart that service so that the config change gets picked up.
1055</p>
1056
1057<pre caption="How to restart a service">
677# <i>/etc/init.d/service restart</i> 1058# <i>/etc/init.d/service restart</i>
678</pre> 1059</pre>
1060
679</body> 1061</body>
680</section> 1062</section>
681<section> 1063<section>
682<title>Step 2: Are all the necessary services actually running?</title> 1064<title>Step 2: Are all the necessary services actually running?</title>
683<body> 1065<body>
684<p>If it's not running, start it up. It's awful hard to debug a service that isn't running. Sometimes a service will act like it's started but still not function. Sometimes, when a bad config is used, or a bad transmission comes into a mail component, the service will hang and keep the port from being used by another process. Sometimes you can detect this with netstat. Or, if you've been at it awhile, just take a break and reboot your box in the meantime. That will clear out any hung services. Then you can come back fresh and try it again.</p> 1066
685<pre> 1067<p>
1068If it's not running, start it up. It's awful hard to debug a service that isn't
1069running. Sometimes a service will act like it's started but still not function.
1070Sometimes, when a bad config is used, or a bad transmission comes into a mail
1071component, the service will hang and keep the port from being used by another
1072process. Sometimes you can detect this with netstat. Or, if you've been at it
1073awhile, just take a break and reboot your box in the meantime. That will clear
1074out any hung services. Then you can come back fresh and try it again.
1075</p>
1076
1077<pre caption="Checking the status of a service">
686# <i>/etc/init.d/$service status</i> 1078# <i>/etc/init.d/$service status</i>
687# <i>netstat -a | grep $service (or $port)</i> 1079# <i>netstat -a | grep $service (or $port)</i>
688</pre> 1080</pre>
1081
689</body> 1082</body>
690</section> 1083</section>
691<section> 1084<section>
692<title>Step 3: Are all the service using the current config's?</title> 1085<title>Step 3: Are all the service using the current config's?</title>
693<body> 1086<body>
694<p>If you've recently made a change to a config file, restart that service to make sure it's using the current version. Some of the components will dump their current config's to you, like postfix.</p> 1087
695<pre> 1088<p>
1089If you've recently made a change to a config file, restart that service to make
1090sure it's using the current version. Some of the components will dump their
1091current config's to you, like postfix.
1092</p>
1093
1094<pre caption="Some services can dump their current config">
696# <i>apachectl fullstatus</i> (needs lynx installed) 1095# <i>apachectl fullstatus</i> (needs lynx installed)
697# <i>apachectl configtest</i> (checks config sanity) 1096# <i>apachectl configtest</i> (checks config sanity)
698# <i>postconf -n</i> (will tell you exactly what param's postfix is using) 1097# <i>postconf -n</i> (will tell you exactly what param's postfix is using)
699# <i>/etc/init.d/$service restart</i> 1098# <i>/etc/init.d/$service restart</i>
700</pre> 1099</pre>
1100
701</body> 1101</body>
702</section>
703<section> 1102</section>
1103<section>
704<title>Step 4: Check the logs.</title> 1104<title>Step 4: Check the logs</title>
705<body> 1105<body>
706<p>Repeat after me, logs are my friend. My next troubleshooting stop is always the logs. Sometimes it's helpful to try a failed operation again then check the logs so that the error message is right at the bottom (or top depending on your logger) instead of buried in there somewhere. See if there is any information in your log that can help you diagnose the problem, or at the very least, figure out which component is having the problem.</p> 1106
707<pre> 1107<p>
1108Repeat after me, logs are my friend. My next troubleshooting stop is always the
1109logs. Sometimes it's helpful to try a failed operation again then check the
1110logs so that the error message is right at the bottom (or top depending on your
1111logger) instead of buried in there somewhere. See if there is any information
1112in your log that can help you diagnose the problem, or at the very least,
1113figure out which component is having the problem.
1114</p>
1115
1116<pre caption="Checking the logs">
708# <i>kill -USR1 `ps -C metalog -o pid=`</i>(to turn off metalog buffering) 1117# <i>kill -USR1 `ps -C metalog -o pid=`</i>(to turn off metalog buffering)
709# <i>nano -w /var/log/mail/current</i> 1118# <i>nano -w /var/log/mail/current</i>
710# <i>cat /var/log/mysql/mysql.log</i> 1119# <i>cat /var/log/mysql/mysql.log</i>
711# <i>tail /var/log/apache/error_log</i> 1120# <i>tail /var/log/apache/error_log</i>
712</pre> 1121</pre>
713<p>You may also find the debug_peer parameters in main.cf helpful. Setting these will increase log output over just verbose mode.</p> 1122
1123<p>
1124You may also find the debug_peer parameters in main.cf helpful. Setting these
1125will increase log output over just verbose mode.
1126</p>
1127
714<pre caption="adding debug_peer support"> 1128<pre caption="adding debug_peer support">
715# <i>nano -w /etc/postfix/main.cf</i> 1129# <i>nano -w /etc/postfix/main.cf</i>
716debug_peer_level = 5 1130debug_peer_level = 5
717debug_peer_list = $host.domain.name 1131debug_peer_list = $host.domain.name
718<codenote>Uncomment one of the suggested debugger</codenote> 1132<comment>(Uncomment one of the suggested debugger
719<codenote>commands as well.</codenote> 1133commands as well.)</comment>
720</pre> 1134</pre>
1135
721</body> 1136</body>
722</section>
723<section> 1137</section>
1138<section>
724<title>Step 5: Talk to the service itself.</title> 1139<title>Step 5: Talk to the service itself</title>
725<body> 1140<body>
726<p>SMTP, IMAP, and POP3 all respond to telnet sessions. As we've seen earlier when we verified postfix's config. Sometimes it's helpful to open a telnet session to the service itself and see what's happening.</p> 1141
727<pre> 1142<p>
1143SMTP, IMAP, and POP3 all respond to telnet sessions. As we've seen earlier when
1144we verified postfix's config. Sometimes it's helpful to open a telnet session
1145to the service itself and see what's happening.
1146</p>
1147
1148<pre caption="Connect to a service with telnet">
728# <i>telnet localhost $port</i> 1149# <i>telnet localhost $port</i>
729<codenote>SMTP is 25, IMAP is 143, POP3 is 110. You should receive at least an OK string,</codenote> 1150<comment>(SMTP is 25, IMAP is 143, POP3 is 110. You should receive at least an OK string,
730<codenote>letting you know that the service is running and ready to respond to requests.</codenote> 1151letting you know that the service is running and ready to respond to requests.)</comment>
731 1152
732Trying 127.0.0.1... 1153Trying 127.0.0.1...
733Connected to localhost. 1154Connected to localhost.
734Escape character is '^]'. 1155Escape character is '^]'.
735* OK Courier-IMAP ready. Copyright 1998-2002 Double Precision, Inc. 1156* OK Courier-IMAP ready. Copyright 1998-2002 Double Precision, Inc.
736</pre> 1157</pre>
1158
737</body> 1159</body>
738</section>
739<section> 1160</section>
1161<section>
740<title>Step 6: Sometimes only the big guns will give you the information you need: strace.</title> 1162<title>Step 6: Sometimes only the big guns will give you the information you need: strace</title>
741<body> 1163<body>
742<p>You should have this installed anyway. This is an invaluable tool for debugging software. You can start commands from the command line with strace and watch all the system calls as they happen. It often dumps a huge amount of information, so you'll either need to watch it realtime as you retry a failed transaction with the mail system, or dump the output to a file for review.</p> 1164
743<pre> 1165<p>
1166You should have this installed anyway. This is an invaluable tool for debugging
1167software. You can start commands from the command line with strace and watch
1168all the system calls as they happen. It often dumps a huge amount of
1169information, so you'll either need to watch it realtime as you retry a failed
1170transaction with the mail system, or dump the output to a file for review.
1171</p>
1172
1173<pre caption="Using strace">
744# <i>emerge strace</i> 1174# <i>emerge strace</i>
745# <i>strace $command</i> 1175# <i>strace $command</i>
746# <i>strace -p `ps -C $service -o pid=`</i> 1176# <i>strace -p `ps -C $service -o pid=`</i>
747</pre> 1177</pre>
1178
748</body> 1179</body>
749</section> 1180</section>
750<section> 1181<section>
751<title>Step 7: Research</title> 1182<title>Step 7: Research</title>
752<body> 1183<body>
753<p>Once you have the information, if you can diagnose and fix the problem, great! If not, you'll probably need to go digging on the net for information that will help you fix it. Here's a list of sites you can check to see if your error has already been resolved. There's also a really good howto on setting up smtp-auth which contains some great debugging ideas.</p> 1184
1185<p>
1186Once you have the information, if you can diagnose and fix the problem, great!
1187If not, you'll probably need to go digging on the net for information that will
1188help you fix it. Here's a list of sites you can check to see if your error has
1189already been resolved. There's also a really good howto on setting up smtp-auth
1190which contains some great debugging ideas.
754<p> 1191</p>
1192
755<ul> 1193<ul>
756<li>
757<uri>http://forums.gentoo.org/</uri> - Great forums for gentoo users</li> 1194 <li><uri>http://forums.gentoo.org/</uri> - Great forums for gentoo users</li>
758<li> 1195 <li>
759<uri>http://bugs.gentoo.org/</uri> - Bugs database for gentoo - great place to look for specific errors</li> 1196 <uri>http://bugs.gentoo.org/</uri> - Bugs database for gentoo - great place
760<li> 1197 to look for specific errors
1198 </li>
761<uri>http://postfix.state-of-mind.de/</uri> - smtp-auth howto</li> 1199 <li><uri>http://postfix.state-of-mind.de/</uri> - smtp-auth howto</li>
762<li> 1200 <li>
763<uri>http://marc.theaimsgroup.com/?l=postfix-users</uri> - Postfix mailing lists - searchable</li> 1201 <uri>http://marc.theaimsgroup.com/?l=postfix-users</uri> - Postfix mailing
1202 lists - searchable
1203 </li>
764<li> 1204 <li>
765<uri>http://sourceforge.net/mailarchive/forum.php?forum_id=6705</uri> - Courier-imap mailing list archives - not searchable</li> 1205 <uri>http://sourceforge.net/mailarchive/forum.php?forum_id=6705</uri> -
1206 Courier-imap mailing list archives - not searchable
1207 </li>
766<li> 1208 <li>
767<uri>http://www.google.com/</uri> - If all else fails, there's always google, which has never failed me</li> 1209 <uri>http://www.google.com/</uri> - If all else fails, there's always
1210 google, which has never failed me
1211 </li>
1212 <li>
768<li>I also spend a lot of time on irc.freenode.net #gentoo. Irc is a great place to go for help.</li> 1213 I also spend a lot of time on irc.freenode.net #gentoo. Irc is a great
1214 place to go for help.
1215 </li>
769</ul> 1216</ul>
770</p> 1217
771</body> 1218</body>
772</section> 1219</section>
773</chapter> 1220</chapter>
774</guide> 1221</guide>
775

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