On Wed, 23 Aug 2006 14:49:19 -0700
Kelson wrote:
> Nick Rout wrote:
> > So I take it USER_IN_WHITELIST also checks Return-Path? I wonder where
> > Return-Path is being set? Is it likely to be set by the spammer? Or is
> > my system adding it in somewhere (probably in error).
>
> Return-Path is usually added by the receiving system, and contains the
> envelope sender of the message. So effectively, it's set by the sender.
>
> It can legitimately disagree with the value in the From header. A
> perfect example would be this message right here. From will contain my
> email address, but Return-Path will contain an address managed by the
> mailing list software at spamassassin.apache.org
Thank you for that, it helps fill in the picture in my fuzzy old brain.
Cheers.
--
Nick Rout <nick@rout.co.nz>
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