SMTP store and forward requires DSN for integrity

From Sat Dec 10 16:56:38 2005
Date: Sat, 10 Dec 2005 17:55:38 -0500 (Eastern Standard Time)
From: Todd Vierling <>
Subject: Re: SMTP store and forward requires DSN for integrity

> BATV will make forged DSNs a thing of the past, irrespective of where a
> recipient list is checked, an AV or SPAM filter is added, etc.

Stop plugging a recipient-side cost-shift scheme that you're directly
involved with as some sort of panacea. BATV has benefits, as do other
schemes, but you're still fixated on it as being the end-all, be-all of
forgery prevention -- by making third parties do the dirty work and letting
the instigators off the hook.

By putting the costs on the shoulders of third parties, you're putting
yourself squarely on the side of the spewing hosts, and being as ignorant as
the admins running the anti-malware products on those hosts. For shame.

I recommend to all a review of the "Rules of Spam".

Rule #1, in particular. Specifically the "Lexical Contradiciton" and "Sharp's

We seem to have yet another example for the 'rules-keeper's refrain'. *sigh*

Considering the source of _this_ demonstration, one can only despair -- what
possible chance is there for things to 'get better', when one of the putatively
'good guys' espouses that kind of double-think?