[Mimedefang] $helo filter checks

[Philip Clever]

I agree, that majority of our spams caught are because of the $helo rule.

-Philip

----- Original Message ----- 
From: "Ole Holm Nielsen" <Ole.H.Nielsen at fysik.dtu.dk>
To: <mimedefang at lists.roaringpenguin.com>
Cc: <john at unidec.co.uk>
Sent: Tuesday, October 21, 2003 9:18 PM
Subject: [Mimedefang] $helo filter checks


> I tried the filter_relay subroutine suggested by John Halewood in
>
http://lists.roaringpenguin.com/pipermail/mimedefang/2003-October/017812.html,
> changing the IP-addresses 195.166... and the domain example.com in
> the script to accord with our network.  I also set MX_RELAY_CHECK=yes
> in /etc/sysconfig/mimedefang and restarted mimedefang.
>
> Based on some 12 hours of operation, I'm really pleased with the
> rejections based on the rules in John's filter.  We've rejected
> a number of spams on account of both bad HELO and spammer IPs
> claiming to be our server.  IMHO, something like John's
> filter_relay ought to be part of the MIMEDefang distribution's
> example mimedefang-filter script.
>
> Ole Holm Nielsen
> Department of Physics, Technical University of Denmark,
> Building 307, DK-2800 Kongens Lyngby, Denmark
>
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