I think this may not have been communicated properly. By "magically" I'm referring to
a hypothetical setup that SHOULD NOT BE MADE, even if it is possible.
The problem was that local mail sent via web messaging wasn't going through the virus
scanner. Web messaging can't (as far as I know) be set up to send mail to anything
besides the IMail server. The hypothetical situation we were talking about was having
IMail see the local address, and pass the mail to the virus scanner.
If *that* was possible (which it likely is not), you *would* have a mail loop, since
IMail wouldn't be able to tell if mail addressed to "@mydomain.com" had already been
through the virus scanner.
-Scott
---------- Original Message ----------------------------------
From: Len Conrad <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Date: Thu, 17 Aug 2000 16:03:08 +0200
>But it won't. Remember, the E-mail got to the virus scanner because
>IMail was set up magically
Imail is untouched, DNS was modified to
original
anydomain.com MX 10 virusgate.ISPdomain.com
virusgate.ISPdomain.com MX 10 virusgate.ISPdomain.com
mail.anydomain.com MX 10 imail.anydomain.com
In the above scheme, local users send their outgoing to
mail.anydomain.com, and it gets routed to Imail and delivered within
Imail, no scanning.
But for scanning local-to-local mail:
anydomain.com MX 10 virusgate.anydomain.com
virusgate.ISPdomain.com MX 10 virusgate.anydomain.com
mail.anydomain.com MX 10 virusgate.anydomain.com
Now local users send to mail (ie, no need to chagne their mail pgms
at all), it gets routed to virusgate, is scanned, and virusgate
forwards to the !! ip address !! of Imail, and Imail delivers the
scanned mail locally.
There is no mail loop because the virus scanner's "next hop" for any
Imail mailhost is not via an MX query, but by virusgate's internal
routing table, or even its NT hosts file.
Len
http://BIND8NT.MEIway.com: ISC BIND 8.2.2 p5 installable binary for NT4
http://IMGate.MEIway.com: Build free, hi-perf, anti-spam mail gateways
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