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can MAPS do an NonDR? Printed From: LogSat Software Category: Spam Filter ISP Forum Name: Spam Filter ISP Support Forum Description: General support for Spam Filter ISP URL: https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6044 Printed Date: 04 November 2025 at 4:25am Topic: can MAPS do an NonDR? Posted By: dcook Subject: can MAPS do an NonDR? Date Posted: 24 April 2007 at 5:23pm I have a few emails everyday (20 - 50) that fill up my queue folder with maps filtered email.  I think this is caused by the NDR spamfilter is trying to issue but the NDR is trying to go to an invalid address.  Is that possible?  I don't know if that is a valid conclusion and if a NoNDR would solve this?  Dwight ------------- Dwight www.vividmix.com Replies: Posted By: LogSat Date Posted: 24 April 2007 at 6:31pm Dwight, SpamFilter will send an NDR if: 1 - the email has successfully passed all filtering rules and... 2 - when SpamFilter attempts to forward it to your destination SMTP server, the latter rejects it for some reason (ex. mailbox full, non-existent user, etc). In this case, SpamFilter does send an NDR back to the sender to inform them of the delivery problem. Please note however that SpamFilter will never send emails directly to the domain in question. Rather SpamFilter forwards all emails to be delivered, regardless of their destination, to your SMTP server. There is a setting in the SpamFIlter.ini file to specify an alternate server to be used for relaying NDRs if you wish. ------------- Roberto Franceschetti http://www.logsat.com" rel="nofollow - LogSat Software http://www.logsat.com/sfi-spam-filter.asp" rel="nofollow - Spam Filter ISP

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