[Bug 6089] Problem with RATWARE_EFROM test

[bu...@bugzilla.spamassassin.org]

https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6089





--- Comment #1 from Justin Mason <jm...@jmason.org>  2009-03-23 05:45:31 PST ---
(In reply to comment #0)

> My understanding of perl is limited, but you seem to be trying to compare the
> (envelope) sender and (header) recipient addresses somehow -- as if I'm only
> allowed to send email to myself, perhaps?

it looks like the rule checks to see if the To: address' domain, then one char,
then the user part, then an @ appear in the envelope-from address.

there's an exclusion if the envelope-sender address starts with SRS0=, however.
is there any way you can use that equals char?

> Is there a coherent explanation somewhere of what this test is trying to do?
> 
> It seems completely bogus to me. The address encoded in the envelope sender is
> the original _sender_ address, and bears no relation to the recipient in the
> To: header, who may not be an actual recipient of the mail at all (it could
> Resent-To: someone else). So comparing the two seems... odd.

it detects a behaviour observed in spam.  far be it from us to figure out why
spammers do what they do... we just give them points for it.


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