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From: Valdis.Kletnieks at (
Subject: Block notification / bounce mails (as in DDOS) 

On Thu, 01 Apr 2004 11:09:41 EST, Tomasz Konefal <>  said:

>    first off, the From: header would not normally be the one emails get 
> bounced to.

Unless you're the victim of bozo sysadmins, such as the user. :)

Unfortunately, there's enough bozo sysadmins out there that can't be bothered
enough to look at the Received: lines and discover a joe-job before they start
flaming, and enough broken mail servers out there, that there's no really good
way to deal with the problem, even if you deploy a standards-compliant

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