Mailing List Message #13509
From: Warren Michelsen <>
Subject: Message IDs and Received: from Headers
Date: Sat, 30 Aug 2003 22:19:43 -0700
To: SIMS Discussions <>
Are message IDs assigned by each MTA to handle a given email? As in:

Received: from ([] verified)
  by (Stalker SMTP Server 1.8b9d14)
  with ESMTP id S.0003132321 for <>; Sat, 23 Aug 2003 08:45:36 -0700
Received: from TRAVELER ([])
 by SMTP00.InfoAve.Net (PMDF V6.1-1IA5 #30771)
 with ESMTP id <01KZST178D2Q993D37@SMTP00.InfoAve.Net> for; Sat,

If so, then given:

Received: from [] (HELO ARLSAUCER)
  by (Stalker SMTP Server 1.8b9d14)
  with ESMTP id S.0003181674 for <>; Sat, 30 Aug 2003 07:40:54 -0700

is it safe to assume that is the originating host and not a relay? has been belching out sobig virus laden email and I've been the recipient. There's no PTR record for this host, which tends to make me think it's a workstation, not a mail server.

Just trying to figure out how to email the doofus responsible.

Warren Michelsen  <>
Online Tools For Business --  <>
Small Business & E-commerce web hosting

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