>Len, I agree with you to an extent but I have 400+ external users
>they all have there own isp I have no way to know where all those
>addresses are from. So I set relay mail for local users only with
>smtp auth. can you tell me a better way in my current cfg.
Sorry, man, you've wrong footed yourself and your users. Leave it
for l'users, and get blacklisted = unhappy clients forever.
The Lone IMgate Ranger can help you by being your MX sans relay open
and be ORBS/MAPS bait with relay for addresses, and allow you take
your Imail out of DNS MX records but leave it in A records so your
users can relay without AUTH and you hope the spammers don't find you
non-MX Imail box cause it will still be open. I think orbs/maps only
attack MX records, not every ip addreses in the universe.
Or, just right foot your Imail to Relay for Addresses = unhappy users
temporarily as they learn SMTP AUTH tactics but then you're back in
the race for good.
Len
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