On 6/5/21 8:49 AM, Hoover Chan wrote:
I have a moderated Mailman mailing list that's being flooded with junk
mail. Looks like back scatter.

I'd like to find out how to block an entire domain


Use header_filter_rules. In the web admin UI Privacy options... -> Spam filters set a rule with patterns:

^From:.*[@.]example.com>?$
^Sender:.*[@.]example.com>?$
^Return-Path:.*[@.]example.com>?$

and action Discard.


--
Mark Sapiro <m...@msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan
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