SpamAssassin and Amavisd: Go Ninja On Your UBE Woes - Page 2
Configuring Postfix To Use Amavisd-new
Now it's time to set up Postfix to use Amavisd-new. This is a fairly generic configuration, ace Postfix admins may futz and tweak to suit themselves. If you're not real experienced with this part of Postfix, the book "Postfix," by Richard Blum, is a first-rate reference.
Add this to the end of /etc/postfix/master.cf:
smtp-amavis unix - - n - 2 smtp
-o smtp_data_done_timeout=1200
-o disable_dns_lookups=yes
127.0.0.1:10025 inet n - n - - smtpd
-o content_filter=
-o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
-o local_recipient_maps=
-o relay_recipient_maps=
-o smtpd_restriction_classes=
-o smtpd_client_restrictions=
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=permit_mynetworks,reject
-o mynetworks=127.0.0.0/8
-o smtpd_authorized_xforward_hosts=127.0.0.0/8
-o strict_rfc821_envelopes=yes
Then add this line to /etc/postfix/main.cf:
content_filter = smtp-amavis:[127.0.0.1]:10024
Then do a complete stop-start cycle for Postfix:
# /etc/init.d/postfix stop # /etc/init.d/postfix start
And you now have a nice spam filter on your mail server. Start sending yourself the saved spams for testing.
You can run SpamAssassin on Postfix without using Amavisd-new. See the SpamAssassin Wiki for howtos on different ways of installing and using SpamAssassin. ClamAV needs Amavisd-new, so it's easy to let it manage SpamAssassin as well.
Come back next week for the exciting installment on installing and using Clam Anti-Virus.
