--On 19 November 2008 08:33:34 -0500 Rich Kulawiec <rsk(_at_)gsp(_dot_)org>
wrote:
On Thu, Nov 20, 2008 at 12:16:22AM +1200, Franck Martin wrote:
but all MTA's send NDR, this is part of their role? or should we stop
that?
The latter. There's no point in sending a NDR in response to malware
or spam (and many reasons not to). Just reject it outright during
the SMTP conversation, and let the sending system deal with that.
Agreed, but the OP's point was that such a reply (which may be unrelated to
the message source or content) can be sent if you're sure the message was
sent by the owner of the envelope sender - ie with a DKIM pass.
--
Ian Eiloart
IT Services, University of Sussex
x3148
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