Tag Archive for 'Postfix'

Postfix home server

If you have a mail server at home and your Internet service provider (ISP) has no right PTR record for your assigned IP, you will get trouble the most mail servers will reject you.

Some best examples for mail rejection: gmx.de, mail.ru

This problem can be solved Continue reading ‘Postfix home server’

Postfix with IPv6


In this how to I describe the basically configuration and administration of Postfix on Debian Lenny.
Current I’m using Postfix version 2.5.5
This tutorial should working with older and newer versions.

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postconf -d | grep "mail_version =" | cut -d" " -f 3
2.5.5

You can find the postfix main configuration file under “/etc/postfix”
Let see what wee need to configure a working Internet Mail-Server

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postfix ~ # vim /etc/postfix/main.cf

My example configuration:

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myhostname = ipv6.postfix.idrobot.net
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = ipv6.postfix.idrobot.net, localhost.localdomain, localhost
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
smtp_bind_address6 = 2a01:4f8:101:265::37
mailbox_command =
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
home_mailbox = Maildir/
bounce_template_file = /etc/postfix/bounce.cf

If you want to relay your mails to another mail-server you can use the relayhost option:
Edit main.cf, and add this line:

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relayhost = ipv6.mx.idrobot.net

Some administration commands:
Show running config:

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postconf -n

Show the default postfix config instead of running one:

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postconf -d

Show message content:

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postcat -q 7FB942082

Delete all mail in queue:

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postsuper -d ALL

Schedule immediate delivery:

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postqueue -i 7FB942082

Flush the queue:

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postqueue -f