MESSAGE
DATE | 2011-06-01 |
FROM | Ron Guerin
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SUBJECT | Subject: [NYLXS - HANGOUT] [Fwd: [svlug] Probable spamhaus domain: apotmail.com]
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FYI.
-------- Original Message -------- Subject: [svlug] Probable spamhaus domain: apotmail.com Date: Wed, 1 Jun 2011 14:27:51 -0700 From: Rick Moen Organization: If you lived here, you'd be $HOME already. To: svlug-at-lists.svlug.org
For the benefit of people who watch such things: It seems that domain 'apotmail.com' is the latest to be deployed for never-post-anything subscriptions to mailing lists for probably nefarious purposes, _probably_ either harvesting of addresses, keeping vetted subscriptions available for a future mass-spamming, or both.
I am about to pre-emptively block Mailman regex ^.*-at-apotmail\.com from subscription to any mailing list I administer or host, joining these existing blocks:
^.*pc1\.papaya\.me\.uk ^.*zeusmail\.org ^.*gmx\.com ^.*-at-dir\.bg
Why have I arrived at that opinion? Patterns. You notice requests arrive to permit new subscriptions to closed mailing lists where, for reasons made obvious on their public Web pages, there is no earthly reason for general members of the public to want to subscribe. And, say, several such requests arrive within a week or so, and you notice that they're all from allegedly different users at zeusmail.org .
You write back to the allegedly aspiring subscribers, asking them why they want to subscribe, say, to a mailing list that exists only for archival purposes, is publicly archived, and is not postable. You never get any reply.[1]
You do a Web-search on zeusmail.org, and you find postings from other mailing list administrators around the world, saying they've had puzzling patterns of subscription from users at zeusmail.org, who never say anything but want to be on mailing lists even where there's no reason for them to want to join them.
What exactly is going on? I'm not absolutely sure, but I'm pretty positive it's nothing good. Smells very much like some sort of intelligence-gathering by professional spamhaus groups, and it's extremely likely that all the requests are script-driven with no human reading any return mail.
Mailing list admins: If you block the above-cited domains, don't forget to check your existing rosters for entries. I'll bet many of you will find you already have 'zeusmail.org' users (for example) whom nobody knows, who never post, and who never respond if you write them.
And yes, I'm aware that blocking individual domains that I notice behaving in a suspiciously spammish manner doesn't scale.
[1] This exact pattern is now confirmed for apotmail.com .
----- Forwarded message from mailman-owner-bounces-at-lists.svlug.org -----
Date: Wed, 01 Jun 2011 14:00:59 -0700 From: mailman-owner-bounces-at-lists.svlug.org To: smaug-owner-at-lists.svlug.org Subject: Smaug subscription notification
Clifford.Ude-at-apotmail.com has been successfully subscribed to Smaug.
----- End forwarded message -----
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