ietf-asrg
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Re: [Asrg] Massive bounce rates on spammer lists

2003-03-06 11:12:42
On Thu, 6 Mar 2003, Chris Lewis wrote:

As a FYI, this isn't our experience.  Mail from "<>" to an "invalid"
address is perhaps even more often a postmaster bounce to a spam forged
in our domain.

Hmm.  OK.  Scratch that one. :-( Although you might be able to tell by
the message contents if you delay the rejection.  A DSN (what happens
in the forged-sender case) typically looks quite different from an
actual spam pretending to be from <>  And disguising spam as a DSN
isn't too attractive, because most end-users are highly-confused
by DSN's.

--
David.
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