SYNOPSIS
AddMXHosts = host.domain [, host.domain, ... ]
DESCRIPTION
The AddMXHosts slow.conf configuration item lists the hosts
that should be added to your list of MX servers. This item is
useful because some MX servers do not record their correct name
on Received: header lines. For example, condsider the MX server
named mx1.host.gov (the name lised when you look up your MX servers).
Suppose it aslo has other names, and the one in the Received:
header is sleepy.host.gov:
Received: from sleepy.host.gov (mx1.host.gov [123.45.67.89])
by your.host.domain (8.13.1/8.13.1) with ESMTP id hBHKfpAq007848
for ; Wed, 17 Dec 2003 13:42:02 -0700 (MST)
Received: from spam.host (spam.host.com [23.45.67.89])
by sleepy.host.gov id 4.1ce.16507c33 (17079)
for ; Wed, 17 Dec 2003 15:41:26 -0500 (EST)
Here, notice that webmilt will now find that sleepy.host.gov is one of your MX serves, so it will look at the next Received: line to find the address (here 23.45.67.89) of the spamming host.
In an instance such as this, you may add the wrong name to your list of MX hosts using this AddMXHosts item. If this AddMXHosts item is declared, it is given a list of host.domains, each separated from the next by a comma. For example:
AddMXHosts = sleepy.host.gov, grumpy.host.gov