Hello,

I'm currently investigating why my Exim mail server queue slowly fills 
up with frozen messages. Now I have found two things that I don't like.

1) When a message comes in for a mailbox that doesn't exist (unknown 
user), the message doesn't seem to be rejected at first instance but a 
bounce mail is generated that cannot be delivered and ends up frozen in 
the queue. How can this be changed so that unknown users 
([EMAIL PROTECTED]) can be rejected at the first place?

2) When a mail forward is set up, the incoming mail seems to be stored 
and confirmed to the sender, then forwarded to the destination. When 
this destination host rejects the message due to spam, my server wants 
to generate a bounce mail notifying about the delivery error. Again, 
this bounce mail ends up frozen in my queue.

I can well imagine that some of the bounced messages are successfully 
delivered to their destination, in case of valid forged sender 
addresses. I don't want my mail server to be responsible for any 
backscatter.

I have configured my own spam filter (SA) so that it can scan the 
message during the first-place SMTP session and reject spam without 
first confirming it and later trying to send back a bounce message. But 
why does exim still use bounces in the two cases mentioned above?

Using Exim 4.62 on Debian 3.1, SpamAssassin 3.18, MySQL database backend 
for virtual domain hosting of mailboxes and forwarding addresses.

-- 
Yves Goergen "LonelyPixel" <[EMAIL PROTECTED]>
Visit my web laboratory at http://beta.unclassified.de

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