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postfix-users: Re: Fighting Backscatter

Re: Fighting Backscatter

From: Wietse Venema <wietse_at_nospam>
Date: Fri Oct 22 2010 - 16:35:07 GMT
To: Postfix users <postfix-users@postfix.org>

> > smtpd_recipient_restrictions =
> > permit_mynetworks
> > permit_sasl_authenticated,
> > reject_unauth_destination
> > ...
> > reject_rbl_client zen.spamhaus.org
> > reject_rbl_client psbl.surriel.com
> > reject_rhsbl_client dbl.spamhaus.org

reject_rhsbl_reverse_client may give more hits, since it is less
likely to be "unknown" than the forward/reverse confirmed client
hostname (Postfix avoids doing rhsbl lookups for "unknown".

        Wietse

> > reject_rhsbl_sender dbl.spamhaus.org
> > reject_rhsbl_helo dbl.spamhaus.org
> > check_policy_service inet:127.0.0.1:60000
[snip]