Auto marking mail to nonexistent email address as spam

Matt Krause me at MATTKRAUSE.NET
Fri May 28 22:36:39 IST 2004


Yeah, I've tried that argument.  It would also cut our message
processing by more 25% too.

Postfix luser_relay = root

Sorry if I was unclear on that.


Mk

Chris W. Parker wrote:

> Kevin Spicer <mailto:kevins at BMRB.CO.UK>
>     on Friday, May 28, 2004 1:39 PM said:
>
>
>>Forgive me if I'm being stupid but how does mail go to non-existant
>>users?
>
>
> well in cases like mine (maybe the op is in the same boat) i used
> mailscanner in front of an exchange server and since mailscanner (until
> recently) has no knowledge of a valid user within the domain it handles
> it just passes the email through. then when the exchange server gets it
> it says "oh wait. we don't have any users here by that name." and then
> sends out an NDR. but since a lot of the time the From: address is
> invalid the NDR doesn't go anywhere and fills up the BadMail directory
> with 1000's of little files.
>
> so technically mail never gets to non-existant users, it's just that it
> puts an unnecessary load on the server (in my case).
>
> and to the op, tell your boss that any mail sent to a non-existant user
> is absolutely pointless and should just be outright deleted. that's what
> i do.
>
>
> chris.
>
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--
Matt Krause
me at mattkrause.net
http://www.mattkrause.net

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