[Cialug] SPAM Class C

[Nicolai]

On Wed, Feb 26, 2020 at 11:31:01AM -0600, David Champion wrote:
> See also: postfix reject_rbl_client

Yep.  I count 27 of those hosts in zen.spamhaus.org.  Here's the
relevant cialug postfix config:

smtpd_client_restrictions =
        reject_rbl_client zen.spamhaus.org,
        reject_unknown_reverse_client_hostname,
        sleep 25,
        reject_unauth_pipelining,
        permit

Nicolai