Jo Rhett wrote: > On Mar 24, 2008, at 6:45 PM, Mark Sapiro wrote: > > I still don't get what you mean by "properly deal with DSNs". Are you > > saying that an MTA should never return a DSN? It should either reject > > the mail during the incoming SMTP transaction or forever hold its > > piece? > > Yes. And not just me, but a dozen different blacklists. RTFM > "backscatter"
You can however safely send a DSN if an SPF[1] check for the incoming message passes. 1. http://www.openspf.org
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ Mailman-Developers mailing list Mailman-Developers@python.org http://mail.python.org/mailman/listinfo/mailman-developers Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-developers%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-developers/archive%40jab.org Security Policy: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp
