Re: Fwd: trouble with "mail is looping" spam
Eric Shubert <[email protected]> Sun, 04 Nov 2012 15:06:42 -0700
| Newsgroups | gmane.mail.vpopmail |
|---|---|
| Organization | Eric Shubert & Associates |
| Message-ID | <[email protected]> |
I've been seeing several of these lately as well. The problem is that there's a Delivered To: header coming in (before it's actually delivered anywhere), so qmail-send thinks it's already delivered and is in a loop, creates a bounce message, which double-bounces back. At that point, I simply have my mail filter delete them. I talked with Sam C of spamdyke fame about it, and it appears that a filter could be added to spamdyke to catch these (compare Delivered To: header to recipients). No commitment though when that might be available. -- -Eric 'shubes' On 11/04/2012 10:54 AM, Joe @ 3ZZZ wrote: > dammit, one more try without "ny lizards" domain... > with apologies for the numerous resends, and thanks. > > > ----- Forwarded message from [email protected] ----- > > > I realized this probably didn't get through due to the spammy domains in > the example, so resending an edited version. > tyvmia > > > > ----- Forwarded message from [email protected] ----- > > Hi, > > This is on a server with > > netqmail-1.06 > qmailadmin-1.2.15 > vpopmail - 5.4.30 > > Recently I began noticing many bounce-backs triggered from spam to > non-existent addresses on domains with "catch-all" set to deleted, and > in the message it says "mail is looping". Example pasted below. > > I'm unable to recreate this by sending to these addresses myself, maybe > it's the way the "To" addresses are formatted by the spammers? > > They don't seem to be abusing the bounce-back (yet) but they're coming > in pretty often, more than once a minute, and it's generating a lot of > junk. Haven't yet been able to figure out why it's happening or how to > stop it from bouncing. > Would greatly appreciate suggestions, thank you. > > > :::::::::::::: > /var/qmail/queue/mess/7/786699 > :::::::::::::: > Received: (qmail 4726 invoked for bounce); 31 Oct 2012 14:49:21 -0000 > Date: 31 Oct 2012 14:49:21 -0000 > From: MAILER-DAEMON@[***REDACTED***].com > To: [email protected] > Subject: failure notice > > Hi. This is the qmail-send program at [***REDACTED***].com. > I'm afraid I wasn't able to deliver your message to the following > addresses. > This is a permanent error; I've given up. Sorry it didn't work out. > > <erin@[***REDACTED***].com>: > mail is looping > > --- Below this line is a copy of the message. > > Return-Path: <[email protected]> > Received: (qmail 4722 invoked by uid 89); 31 Oct 2012 14:49:21 -0000 > Received: from unknown (HELO norgazdata.com) (176.223.172.3) > by [***REDACTED***].com with SMTP; 31 Oct 2012 14:49:21 -0000 > Delivered-To: erin@[***REDACTED***].com > Received: by 10.223.118.17 with SMTP id t17cs125410faq; > Wed, 31 Oct 2012 07:49:25 -0700 > Received: by 10.216.220.142 with SMTP id o14mr2820421wep.61.1316443187605; > Wed, 31 Oct 2012 07:49:25 -0700 > Return-Path: <[email protected]> > From: "ChristianMingle.com Dating Offer" > <[email protected]> > Content-Type: multipart/alternative; boundary=Apple-Mail-3-110609711 > Subject: Connect with local Christian Singles in our online community > Date: Wed, 31 Oct 2012 07:49:25 -0700 > Message-Id: <[email protected]> > To: <erin@[***REDACTED***].com> > Mime-Version: 1.0 (Apple Message framework v1084) > X-Mailer: Apple Mail (2.1084) > X-AntiAbuse: This header was added to track abuse, please include it > with any abuse report > X-AntiAbuse: Primary Hostname - SPAM.info > X-AntiAbuse: Original Domain - yahoo.com > X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] > X-AntiAbuse: Sender Address Domain - SPAM.info > > > > > > > > > > > > --Apple-Mail-3-110609711 > Content-Transfer-Encoding: 7bit > Content-Type: text/plain; > charset=us-ascii > > Most recently, it has become common for online dating websites to > provide webcam chats between members. In > [snip] > > EOM > > > > > ----- End forwarded message ----- > > > > > > > > > ----- End forwarded message ----- > > > > > !DSPAM:509682d733997415513824! > > !DSPAM:5096bde133991166112062!