--- On Mon, 3/4/13, Dale Moore <[email protected]> wrote: > ... I have had the philosophy that it is better to reject an email via > SMTP protocol (550 5.1.1 No Such user here) instead of accepting an > email then later sending a Delivery Status Notification (DSN) that an email > could not be delivered....
I don't believe that one has such a choice. In today's hostile world, if one CAN reject during the SMTP session, one MUST reject during the session. An end system (where mail is delivered) should never generate a rejection DSN; only relay systems may/should do so but not always (cf. forged mail). The fact that your belief is not absolute is indicative of the problem. _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
