Internet -> Mailscanner -> Exchange 2000

[Ugo Bellavance]

Hi,

        I searched through the archives, but didn't find anythig relevant.  I am
looking forward to use Mailscanner in front of my Exchange 2000 server (by
the way, it could be any SMTP server).  I read the docs, but in all cases,
it talks about mailscanner being installed on the machine where the actual
mailboxes are.  What I want to do is filter out spam and viruses (although I
have symantec AV for exchange) with mailscanner, in the DMZ, and then send
the filtered messages to my  Exchange 2000 server.  Right now, my Exchange
2000 server receives mail directly from the internet and I don't really like
that.  I would, at least, want to have a mail relay in my DMZ (so that I
wouldn't care too much if it's compromised, since there is a firewall
between it and my LAN), that sends the messages to my internal Exchange
server.  Of course, since MailScanner can filter spam and viruses, I would
like to implement that as well.

        How do I do that?  simply putting my exchange 2000 server as a "relay_host"
in postfix?  I tried a few things, like playing with the transport file, but
the result is that it sent the mail to the Exchange server, but without
scanning for virus and filtering spam.  How do I know it is not scanned?  I
don't see these messages in my logs:

Aug  7 07:48:20 server MailScanner[4450]: New Batch: Scanning 1 messages,
501 byte
s
Aug  7 07:48:34 server MailScanner[4450]: Virus and Content Scanning:
Starting
Aug  7 07:48:34 server MailScanner[4450]: Uninfected: Delivered 1 messages

Thanks,

Ugo Bellavance,
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