Email Relay Searches

From: Pat Moffitt (pmoffitt@wrv.com)
Date: 03/29/02 

From: "Pat Moffitt" <pmoffitt@wrv.com>
To: "INCIDENTS" <INCIDENTS@SECURITYFOCUS.COM>
Date: Fri, 29 Mar 2002 08:15:03 -0800

I have been seeing a few of these and find them, well, interesting.

2002-03-29 00:14:18 refused relay (host) to <mattkell@00264587623.com> from
<mattkel@00264587623.com> H=(12.144.138.34) [12.254.177.131]

If you check you will find that 002645587623.com does exist. They are
sending out email trying to relay through other servers and the hello has
the server's address in it. So all they have to do is log all the
H=(xx.xx.xx.xx)'s and they have a list of open mail relay servers.

Anything we can do about these?

Pat Moffitt
MIS Administrator
Western Recreational Vehicles, Inc.

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