backscatter / ndr / smtp auth issues

[Rick Cooper]

----Original Message----
From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Gavin
Silver Sent: Monday, February 22, 2010 1:41 PM To: MailScanner discussion
Subject: RE: backscatter / ndr / smtp auth issues

> That server is not my mailscanner but shouldn't mailscanner not accept
> the message in the first place to relay onto my clients domain if the
> user doesn't exist (smtp auth)  
> 
> 

Mailscanner doesn't validate users, your MTA does/should. I have had this
type of bounce when I deleted a user from the mail system but missed them on
a forward. A copy of each sales person's mail is forwarded to a manager and
the manager was removed from the user base but not the .forward files. The
mail is delivered for the envelope recipient but the manager address in the
.forward file results in an internal  (from my MTA to my MTA) bounce when
the forward is attempted.


> 
> 
> ----------------------------------
> Gavin Silver
> 
> 
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Kai
> Schaetzl  
> Sent: Monday, February 22, 2010 11:55 AM
> To: mailscanner at lists.mailscanner.info
> Subject: Re: backscatter / ndr / smtp auth issues
> 
> Gavin Silver wrote on Mon, 22 Feb 2010 10:59:42 -0500:
> 
>> < UNKNOWN_USER at MY_CLIENTS_DOMAIN.com >: host
>>     MY_CLIENTS_MAILSERVER.com[client.server.ip.address] said: 550 5.1.1
>> User unknown (in reply to RCPT TO command) 
> 
> that system is probably not your mailscanner server and thus rejects the
> non-deliverable mail to your mailscanner server. Not?
> 
> Kai
> 
> --
> Get your web at Conactive Internet Services: http://www.conactive.com
> 


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