I would add this to your acl:
require verify = sender/callout=10s/no_details
That will knock alot of spam right there.
bkw
----- Original Message -----
From: "Chris Dollmont" <chris@???>
To: <exim-users@???>
Sent: Tuesday, May 20, 2003 1:34 PM
Subject: [Exim] Major spam problems...
> Overview:
>
> We have an existing mail domain which I'll call domain1.com. We
> acquired another company and their domain, which I'll call
> domain2.com.
>
> Since adding handling of inbound mail for domain2.com, the amount of
> spam we have has shot through the roof. This has two impacts:
>
> 1) On the outbound mail server, I have hundreds (and in one recent
> case, over a thousand) mail messages in the queue that are error
> notifications going back to a fake address. These messages have the
> classic "<>" To: address. In an attempt to stop these messages, I've
> done the following:
>
> ignore_errmsg_errors = yes
>
> I've tried:
>
> ignore_errmsg_errors_after = 2h
>
> Neither of these seems to work--I still have hundreds of messages,
> some of which have been in the queue for more than 48 hours. I get
> rid of these by executing:
>
> exim -Mrm $(mailq | grep "<>" | awk '{print $3}')
>
> but this is imprecise. :-)
>
> A related question, but not a priority, is why do I have email that's
> been in the queue for more than 72 hours when I have
> timeout_frozen_after = 3d?
>
> 2) On the incoming mail server, we've deprecated all but a couple of
> the user@??? addresses. I put:
>
> receiver_verify
> receiver_verify_addresses = /etc/exim/valid.recipients
>
> In valid.recipients I have:
>
> *.domain1.com
> user@???
>
> Mail for anyuser@??? is still coming in and being processed,
> though. We'd like it rejected at this point (a firewall gateway).
>
> Am I overlooking something simple? This is becoming a real problem
> because each of thousands of messages a day is being run through
> Spamassassin, which is boosting the load on my poor server. If I can
> stop the messages at the gateway in problem 2), I can reduce the load
> considerably. Problem 1) has the effect of making my queues huge and
> hard to handle from and administration standpoint.
>
> TIA for any help.
>
> Chris
>
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>
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