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howtos:network_services:postfix_dovecot_mysql:postfix [2015/02/16 01:26 (UTC)] astrogeek |
howtos:network_services:postfix_dovecot_mysql:postfix [2018/10/08 02:14 (UTC)] (current) astrogeek [Configuring The Postfix MTA] |
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| - | ===== Installing The Postfix MTA ===== | + | ====== Installing The Postfix MTA ====== |
| - | <note important>This article is under construction and not complete! Please return later...</note> | + | This page is supplemental to main article: [[howtos:network_services:postfix_dovecot_mysql|Creating a Virtual Mail Server with Postfix, Dovecot and MySQL]] |
| Postfix is a popular and secure mail transport agent, or MTA. | Postfix is a popular and secure mail transport agent, or MTA. | ||
| Line 41: | Line 41: | ||
| Copy the package file to the target platform if necessary and install: | Copy the package file to the target platform if necessary and install: | ||
| <code>installpkg {path-to/}postfix-2.11.3-x86_64-1_SBo.tgz</code> | <code>installpkg {path-to/}postfix-2.11.3-x86_64-1_SBo.tgz</code> | ||
| - | ===== Configuring The Postfix MTA ===== | + | ====== Configuring The Postfix MTA ====== |
| - | You should become familiar with the [[http://www.postfix.org/documentation.html|postfix documentation]] in order to properly configure and administer your mail server. | + | |
| + | You must become familiar with the [[http://www.postfix.org/documentation.html|postfix documentation]] in order to properly configure and administer your mail server. Additionally, a complete set of online documentation for your version is installed from the package to /usr/doc/postfix-2.11.3/html/, learn what is there. | ||
| + | |||
| + | <note important>You //must// become familiar with the tools available to you in order to safely admin and maintain your mail server! Take the time necessary to //read the man pages// - man postfix, man postconf, man master at minimum. And become familiar with the resources available through **man postfix:SEE ALSO** section, //before// you start your mail server! </note> | ||
| What follows is a minimum configuration to safely operate a virtual email server on the internet, but you will surely want to adapt it to your specific needs. | What follows is a minimum configuration to safely operate a virtual email server on the internet, but you will surely want to adapt it to your specific needs. | ||
| Line 57: | Line 60: | ||
| vi /etc/postfix/master.cf | vi /etc/postfix/master.cf | ||
| - | //Uncomment the following lines...// | + | # Uncomment the following lines # |
| smtp inet n - n - - smtpd | smtp inet n - n - - smtpd | ||
| submission inet n - n - - smtpd | submission inet n - n - - smtpd | ||
| Line 70: | Line 73: | ||
| vi /etc/postfix/main.cf | vi /etc/postfix/main.cf | ||
| - | //Now enter the following lines...// | + | # Enter the following lines # |
| mynetworks_style = host | mynetworks_style = host | ||
| myorigin = $mydomain | myorigin = $mydomain | ||
| - | #Change my-domain.com to the actual domain name of your server | + | # Change my-domain.com to the actual domain name of your server # |
| mydomain = my-domain.com | mydomain = my-domain.com | ||
| - | #mydestination must be localhost only to allow postfix to deliver non-virtual system mail | + | # mydestination must be localhost only to allow postfix to deliver non-virtual system mail # |
| mydestination = localhost | mydestination = localhost | ||
| #IMPORTANT - relay_domains should be empty to prevent your server from becoming a spam relay! | #IMPORTANT - relay_domains should be empty to prevent your server from becoming a spam relay! | ||
| #If you actually need to relay to other domains READ THE DOCUMENTATION CAREFULLY! | #If you actually need to relay to other domains READ THE DOCUMENTATION CAREFULLY! | ||
| - | relay_domains = | + | relay_domains = |
| + | # We have no local users, so no local notifications # | ||
| biff = no | biff = no | ||
| - | append_dot_mydomain = no | ||
| </code> | </code> | ||
| Now we need to configure the secure aspects of our mail server, again in main.cf: | Now we need to configure the secure aspects of our mail server, again in main.cf: | ||
| - | |||
| <code> | <code> | ||
| vi /etc/postfix/main.cf | vi /etc/postfix/main.cf | ||
| - | //Enter the following lines...// | + | # Enter the following lines # |
| - | #SSL certificates will be created at these locations when we configure dovecot | + | # SSL certificates will be created at these locations when we configure dovecot # |
| smtpd_tls_cert_file = /etc/ssl/localcerts/dove.pem | smtpd_tls_cert_file = /etc/ssl/localcerts/dove.pem | ||
| - | smtpd_tls_key_file = /etc/ssl/localcerts/dove.key | + | smtpd_tls_key_file = /etc/ssl/private/dove.key |
| #Accept only secure smtp connections | #Accept only secure smtp connections | ||
| Line 119: | Line 121: | ||
| vi /etc/postfix/main.cf | vi /etc/postfix/main.cf | ||
| - | //Enter the following lines...// | + | # Enter the following lines # |
| #Tell postfix to use dovecot lmtp for virtual mail delivery | #Tell postfix to use dovecot lmtp for virtual mail delivery | ||
| Line 129: | Line 131: | ||
| virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf | virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf | ||
| - | #Set localhost destinations | + | #Set localhost aliases path |
| alias_maps = hash:/etc/aliases | alias_maps = hash:/etc/aliases | ||
| </code> | </code> | ||
| - | The last four files do not yet exist on the system and so, must be created. The virtual files tell postfix how to interact with the mysql database. The final alias_maps file tells the postfix process where to send operational messages. | + | The last four files do not yet exist on the system and so, must be created. The files prefixed with "virtual" tell postfix how to interact with the mysql database. The final alias_maps file tells the postfix process where to send operational messages. |
| First we must tell postfix how to identify which virtual domains it handles mail for by providing a proper query of the virtual database. This query must return true if the domain is in the database: | First we must tell postfix how to identify which virtual domains it handles mail for by providing a proper query of the virtual database. This query must return true if the domain is in the database: | ||
| Line 140: | Line 142: | ||
| vi /etc/postfix/mysql-virtual-mailbox-domains.cf | vi /etc/postfix/mysql-virtual-mailbox-domains.cf | ||
| - | //Enter the following lines...// | + | # Enter the following lines # |
| user= mailuser | user= mailuser | ||
| password = {your mailuser password} | password = {your mailuser password} | ||
| - | host = localhost | + | hosts = localhost |
| dbname = mailserver | dbname = mailserver | ||
| query = SELECT 1 FROM virtual_domains WHERE name='%s' | query = SELECT 1 FROM virtual_domains WHERE name='%s' | ||
| Line 154: | Line 155: | ||
| This will return true (1) if the domain is found, NULL if not found, and an error message if the query or connection is not correctly configured. | This will return true (1) if the domain is found, NULL if not found, and an error message if the query or connection is not correctly configured. | ||
| + | |||
| + | Also note that other database connection options are available, for example if you are connecting to a remote database server, or multiple servers. See the mysql_table man page from the postfix package for complete connect parameter information. | ||
| Next, we must tell postfix how to identify valid virtual mail box users. This query must also only return true if the mail box exists in the database. | Next, we must tell postfix how to identify valid virtual mail box users. This query must also only return true if the mail box exists in the database. | ||
| Line 160: | Line 163: | ||
| vi /etc/postfix/mysql-virtual-mailbox-maps.cf | vi /etc/postfix/mysql-virtual-mailbox-maps.cf | ||
| - | //Enter the following lines...// | + | # Enter the following lines # |
| user= mailuser | user= mailuser | ||
| password = {your mailuser password} | password = {your mailuser password} | ||
| - | host = localhost | + | hosts = localhost |
| dbname = mailserver | dbname = mailserver | ||
| query = SELECT 1 FROM virtual_users WHERE email='%s' | query = SELECT 1 FROM virtual_users WHERE email='%s' | ||
| Line 178: | Line 180: | ||
| vi /etc/postfix/mysql-virtual-alias-maps.cf | vi /etc/postfix/mysql-virtual-alias-maps.cf | ||
| - | //Enter the following lines...// | + | # Enter the following lines # |
| user= mailuser | user= mailuser | ||
| password = {your mailuser password} | password = {your mailuser password} | ||
| - | host = localhost | + | hosts = localhost |
| dbname = mailserver | dbname = mailserver | ||
| query = SELECT destination FROM virtual_aliases WHERE source='%s' | query = SELECT destination FROM virtual_aliases WHERE source='%s' | ||
| Line 196: | Line 197: | ||
| vi /etc/aliases | vi /etc/aliases | ||
| - | //Enter the following lines...// | + | # Enter the following lines # |
| postmaster: root | postmaster: root | ||
| - | root: myself | + | root: root |
| </code> | </code> | ||
| - | After creating the aliases file, you must use the postmap utility to build the local aliases database... | + | After creating the aliases file, you must use the newaliases utility to build the local aliases database... |
| - | <code>postmap /etc/aliases</code> | + | <code>newaliases</code> |
| This will create the file /etc/aliases.db in format useable by postfix. | This will create the file /etc/aliases.db in format useable by postfix. | ||
| Line 210: | Line 211: | ||
| [[howtos:network_services:postfix_dovecot_mysql|Return to main article page]] | [[howtos:network_services:postfix_dovecot_mysql|Return to main article page]] | ||
| + | |||
| + | ====== Sources ====== | ||
| + | * Based primarily on [[http://www.postfix.org/documentation.html|Postfix documentation]] | ||
| + | * Originally written by [[wiki:user:astrogeek | astrogeek]] | ||
| {{tag>howtos postfix dovecot mysql}} | {{tag>howtos postfix dovecot mysql}} | ||
