From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Daniel W" <daniel.watts@lincoln-oxford.com>
Subject: Blocking mail from certain domains....
Date: Fri, 10 Oct 2003 00:42:13 +0100
Sender: linux-admin-owner@vger.kernel.org
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To: linux-admin@vger.kernel.org

although a bit more tricky than that perhaps.


Say i own domain1.com and domain2.com

My users on each domain are getting emails from admin@domain1.com and
admin@domain2.com which are viruses but actually quite believeable. these
originate outside of my server but from various IP addresses.

Is there some way to make a rule:

Block all email from admin@*
where the sending IP is not [list of ip addresses that I own]


Where would I put this rule and how would it be activated? I think i have
procmail...or am i barking up the wrong tree?

Thanks for helping this newbie.

Regards,
Daniel