http://issues.apache.org/SpamAssassin/show_bug.cgi?id=2142
------- Additional Comments From [EMAIL PROTECTED] 2007-02-26 10:21 -------
(In reply to comment #6)
> Btw, the Mail::SpamAssassin::Conf man page in 'whitelist_from'
> does not mention Return-Path. A documentation bug or a true
> omission?
a doco bug. Here's what it reads in SVN trunk:
The headers checked for whitelist addresses are as follows: if C<Resent-From>
is set, use that; otherwise check all addresses taken from the following
set of headers:
Envelope-Sender
Resent-Sender
X-Envelope-From
From
In addition, the "envelope sender" data, taken from the SMTP envelope data
where this is available, is looked up. See C<envelope_sender_header>.
...
=item envelope_sender_header Name-Of-Header
SpamAssassin will attempt to discover the address used in the 'MAIL FROM:'
phase of the SMTP transaction that delivered this message, if this data has
been made available by the SMTP server. This is used in the C<EnvelopeFrom>
pseudo-header, and for various rules such as SPF checking.
By default, various MTAs will use different headers, such as the following:
X-Envelope-From
Envelope-Sender
X-Sender
Return-Path
SpamAssassin will attempt to use these, if some heuristics (such as the header
placement in the message, or the absence of fetchmail signatures) appear to
indicate that they are safe to use. However, it may choose the wrong headers
in some mailserver configurations. (More discussion of this can be found
in bug 2142 and bug 4747 in the SpamAssassin BugZilla.)
which I think works.
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