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NDR for certain domains only

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=5690
Printed Date: 31 July 2025 at 8:51am


Topic: NDR for certain domains only
Posted By: jbs0023
Subject: NDR for certain domains only
Date Posted: 28 June 2006 at 4:35pm

Is there any way to setup SF to send NDRs to certain domains only? For example, I have a couple domains that receive a large amount of spam, and I would prefer not to send NDRs to senders to these domains. 


Replies:
Posted By: lyndonje
Date Posted: 29 June 2006 at 3:40am
You really should send NDR's, otherwise geniune emails that are wrongly detected may 'go missing'.

It isn't SF that actually generates the NDR, SF simply refuses to accept the incomming email which causes the sending server to generate and deliver the NDR.

I think SF only generates an NDR if it has issues delivering an email it has already accepted to the destination server, either user does not exist or other server problems.

If you get a lot of spam going to unknown users I would recommend you implement the AuthorizedTo filter - I've seen a dramatic decrease in the quarantine size since going this and a lot of emails being blocked!


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