Has anyone else recently had any messages show up in their inbox w/subject "Delivery failure notice (ID-0000XXXX)" (fill in a hex number for the Xs)? I've had one a day since Wednesday, all between 9:00 and 10:00 AM my time (EDT), all from sites I've never sent messages to, all with essentially the same text:
--- Mail Part Delivered ---
220 Welcome to [mydomain.com]
Mail type: multipart/related
--- text/html RFC 2504
MX [Mail Exchanger] mx.mt2.kl.mydomain.com
Exim Status OK.
Delivered message is available.
All have a 25K attachment (of type "application/octet-stream"), which I, of course, refuse to download. It shows up addressed to what I use as my main email address (which I have never posted online). I'm assuming these are forged in some way since the Received header is always :
[b]Received:[/b] from mydomain.com (sticksony.chem.uga.edu [18.104.22.168])
by ludo.dreamhost.com (Postfix) with ESMTP id 95FB12843F
for <firstname.lastname@example.org>; Fri, 23 Apr 2004 06:53:47 -0700 (PDT)
The date and who it's from varies with each, but essentially all are the same (and I don't run the uga.edu domain!).
Is this something to be concerned about? Anyone with similar experiences? Think I should I contact to support to let them know?