[2024-feb-29] Sad news: Eric Layton aka Nocturnal Slacker aka vtel57 passed away on Feb 26th, shortly after hospitalization. He was one of our Wiki's most prominent admins. He will be missed.
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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 [2015/02/16 09:47 (UTC)] – First complete version astrogeek | ||
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===== Installing The Postfix MTA ===== | ===== Installing The Postfix MTA ===== | ||
- | |||
- | <note important> | ||
Postfix is a popular and secure mail transport agent, or MTA. | Postfix is a popular and secure mail transport agent, or MTA. | ||
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< | < | ||
===== Configuring The Postfix MTA ===== | ===== Configuring The Postfix MTA ===== | ||
- | You should | + | You must become familiar with the [[http:// |
+ | |||
+ | <note important> | ||
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. | ||
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vi / | vi / | ||
- | //Uncomment the following lines...// | + | # Uncomment the following lines # |
smtp inet n | smtp inet n | ||
submission inet n | submission inet n | ||
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vi / | vi / | ||
- | //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 = 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 | ||
</ | </ | ||
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: | ||
- | |||
< | < | ||
vi / | vi / | ||
- | //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 = / | smtpd_tls_cert_file = / | ||
smtpd_tls_key_file = / | smtpd_tls_key_file = / | ||
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vi / | vi / | ||
- | //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 | ||
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virtual_alias_maps = mysql:/ | virtual_alias_maps = mysql:/ | ||
- | #Set localhost | + | #Set localhost |
alias_maps = hash:/ | alias_maps = hash:/ | ||
</ | </ | ||
- | The last four files do not yet exist on the system and so, must be created. The virtual | + | The last four files do not yet exist on the system and so, must be created. The files prefixed with " |
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: | ||
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vi / | vi / | ||
- | //Enter the following lines...// | + | # Enter the following lines # |
user= mailuser | user= mailuser | ||
password = {your mailuser password} | password = {your mailuser password} | ||
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vi / | vi / | ||
- | //Enter the following lines...// | + | # Enter the following lines # |
user= mailuser | user= mailuser | ||
password = {your mailuser password} | password = {your mailuser password} | ||
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vi / | vi / | ||
- | //Enter the following lines...// | + | # Enter the following lines # |
user= mailuser | user= mailuser | ||
password = {your mailuser password} | password = {your mailuser password} | ||
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vi / | vi / | ||
- | //Enter the following lines...// | + | # Enter the following lines # |
postmaster: root | postmaster: root | ||
- | root: myself | + | root: root |
</ | </ | ||