Postfix

Dec 15, 2013

1 min read

May 27, 2023 09:13 EEST

Spamassassin

http://ezine.daemonnews.org/200309/postfix-spamassassin.html

Update Spamassassin

48 5 * * * /usr/local/bin/sa-update  --channel updates.spamassassin.org && /usr/local/etc/rc.d/sa-spamd restart

Filter before accepting mails

To filter before acception mails, e.g. with amavisd it is quiet simple. In my case amavisd is accepting mails on port 10024 and transfer it back on port 10025. We add the following into the master.cf:

smtp      inet  n       -       n       -       20       smtpd
        -o smtpd_proxy_filter=127.0.0.1:10024
        -o smtpd_client_connection_count_limit=10
        -o smtpd_proxy_options=speed_adjust
localhost:10025 inet    n       -       n       -       -       smtpd
        -o smtpd_authorized_xforward_hosts=127.0.0.0/8
        -o smtpd_client_restrictions
        -o smtpd_helo_restrictions
        -o smtpd_sender_restrictions
        -o smtpd_recipient_restrictions=permit_mynetworks,reject
        -o smtpd_data_restrictions
        -o mynetworks=127.0.0.0/8
        -o receive_override_options=no_unknown_recipient_checks

Make sure amavisd is running and restart postfix.

Dec 15	Airvideo	1 min read
Dec 15	Build Own Generic CD	3 min read
Dec 15	Courier IMAP	1 min read
Dec 15	Cups	1 min read
Dec 15	Davical	1 min read