Re: [Exim] Multiple recipients and whitelist checks

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Autor: Tim Jackson
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A: exim-users
Assumpte: Re: [Exim] Multiple recipients and whitelist checks
Hi ISP, on Thu, 15 Jul 2004 18:25:44 -0500 you wrote:

> We use MailScanner (http://www.mailscanner.info) to scan our inbound
> mail for spam. exim 4.x is used as the MTA. In order to effectively
> use white/blacklists, I need a way for exim to break up a message sent
> to multiple recipients (e.g. in the To, CC, or BCC line) into multiple
> messages (one recipient per message). Otherwise, if one person on the
> recipient list is blacklisted, the rest of the recipients will not get
> the message. How can this be accomplished with exim?


What kind of "white/blacklisting" are you doing? It's worth considering
that if you're (for example) blacklisting sender domains or hosts (perhaps
using DNSBLs), you could move that part of it outside Mailscanner and just
do it per-recipient using the Exim ACLs.

Failing that, it depends how MailScanner screws into Exim. (Forgive my
limited knowledge of MailScanner; though I did look into it at one time,
after discovering Exiscan I found I had no real need for anything else).
Does it screw in deep enough that you are rejecting at SMTP DATA time? If
yes, then check out the suggestions already mentioned, particularly with
respect to Alan's "scanning profiles" idea of deferring some recipients.
If not, then how are you running it? Are you not already running at
delivery time and therefore getting called once per recipient?

Tim