So, just to clarify, you are saying that the view of ASRG is that if an
MTA receives a message which when checked using anti-virus software such
as Sophos or ClamAV (note this, my discussion was not about other
anti-spam techniques) give a positive, the correct course of action is
to reject the message using a 5xx response?
That seems to be the consensus here, yes.
My MTA does rejects on anything that has an attached EXE file, and I don't
ever recall getting any complaints about backscatter.
R's,
John
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