[Mimedefang] SPF Usefulness (was Re: SNARE spam detection)
David F. Skoll
dfs at roaringpenguin.com
Thu Jul 30 09:49:01 EDT 2009
Steffen Kaiser wrote:
> However, it is possible to notify end-users about this case. Once I
> placed the MAIL FROM into the subject, if the addresses differ, but this
> caused lots of grief with mailing lists.
> I wonder why so few MUAs show a notice, when Return-Path and From
> differs. - - Actually I remember this only on Webmail.
Take a look at this e-mail. It's extremely common for Return-Path
and From: to differ.
Regards,
David.
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