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From Jeff Chan <>
Subject Re: Undeliverable mails
Date Wed, 04 Jun 2008 18:13:03 GMT
On Wednesday, June 4, 2008, 7:04:50 AM, Jack Gostl wrote:
> I'm not sure if this can even be handled, but I thought I'd put it out there.

> Someone is using our email address to originate spam. We are
> getting bombed with "Mail undeliverable" etc. messages from
> failed spam delivery attempts. This morning I check my inbox
> and found almost 100 of these since last night.

> I'm not sure what can be done about this. I'm a bit squeamish
> about just knocking this stuff out in procmail.

> Does anyone have any suggestions?

Check out Justin's blog:

> Justin Mason’s Weblog
> How to deal with joe-jobs and massive bounce storms
> January 10, 2007 at 2:14 pm
> As I’ve noted before, we still have a major problem with sites
> generating bounce/backscatter storms in response to forged mail
> — whether deliberately targeted, as a “Joe-Job”, or as a
> side-effect attempts to evade over-simplistic sender address
> verification as seen in spam, viruses, and so on.

It helped us.

Jeff C.
Jeff Chan

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