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Bug?

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=4972
Printed Date: 16 April 2026 at 2:10am


Topic: Bug?
Posted By: Guests
Subject: Bug?
Date Posted: 14 January 2005 at 12:58am

Hi, All!

I am using attachments black list. Why don't send NDR if mail rejected?


Replies:
Posted By: Desperado
Date Posted: 16 January 2005 at 6:43pm

Alexey,

If I am not mistaken, banned attachments *do* send NDRs by design.  However, presumably, you add a banned attachment because you feel it is a virus and since most viruses forge the from header, sending a return would only go to the wrong recipient anyway.
 
EXAMPLES:
 
*.ade    Will block and send NDR
*.ade:nondr   Will block and NOT send NDR
*.ade:null    Will block and NOT send NDR and NOT send to quarantine
 
Anyone feel free to correct me.
 
Regards,
 
Dan S.
 

Posted By: Guests
Date Posted: 17 January 2005 at 3:23am
If I am not mistaken, banned attachments *do* send NDRs by design.  However, presumably, you add a banned attachment because you feel it is a virus and since most viruses forge the from header, sending a return would only go to the wrong recipient anyway.
Indeed! But sometimes useful attachment comes with "wrong" extension and sender not receive NDR.
EXAMPLES:
 
*.ade    Will block and send NDR
*.ade:nondr   Will block and NOT send NDR
*.ade:null    Will block and NOT send NDR and NOT send to quarantine
I'm using only first variant, but NDR not sending. Maybe some settings have an influence on it?

Posted By: Desperado
Date Posted: 18 January 2005 at 7:27pm

Alexey,

Hmmm ... I just tested again by sending a banned attachment from my hotmail account and received the following in my hotmail box:

Reporting-MTA: dns;hotmail.com
Received-From-MTA: dns;mail.hotmail.com
Arrival-Date: Tue, 18 Jan 2005 16:23:01 -0800

Final-Recipient: rfc822;XXX@XXXs.net
Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;557 This email is rejected. It contains keywords OR a message format rejected by our antispam content filter.

So I am not sure what is happening on your end.

Dan S.


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