Hi Eric,

Thanks for your reply and the explanation.
We use spamdyke already and would be happy if that solution comes about.
I wonder why spammers aren't exploiting this to generate bounceback spam, maybe they just haven't caught on yet...?

Quoting Eric Shubert <e...@shubes.net>:

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 j...@3zzz.net -----

I realized this probably didn't get through due to the spammy domains in
the example, so resending an edited version.

----- Forwarded message from j...@3zzz.net -----


This is on a server with

 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.

Received: (qmail 4726 invoked for bounce); 31 Oct 2012 14:49:21 -0000
Date: 31 Oct 2012 14:49:21 -0000
To: christianmingle.com.dating.of...@spam.info
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
This is a permanent error; I've given up. Sorry it didn't work out.

mail is looping

--- Below this line is a copy of the message.

Return-Path: <christianmingle.com.dating.of...@spam.info>
Received: (qmail 4722 invoked by uid 89); 31 Oct 2012 14:49:21 -0000
Received: from unknown (HELO norgazdata.com) (
  by [***REDACTED***].com with SMTP; 31 Oct 2012 14:49:21 -0000
Delivered-To: erin@[***REDACTED***].com
Received: by with SMTP id t17cs125410faq;
        Wed, 31 Oct 2012 07:49:25 -0700
Received: by with SMTP id o14mr2820421wep.61.1316443187605;
        Wed, 31 Oct 2012 07:49:25 -0700
Return-Path: <christianmingle.com.dating.of...@spam.info>
From: "ChristianMingle.com Dating Offer"
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: <15b9b82c-dd58-5752-4ab9-20c6a70c7...@spam.info>
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

Content-Transfer-Encoding: 7bit
Content-Type: text/plain;

Most recently, it has become common for online dating websites to
provide webcam chats between members. In


----- End forwarded message -----

----- End forwarded message -----



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