> > 1. how do I know if my server is open for spam (relay)
>
> try an open relay tester, like the one at www.abuse.net/relay.html
I tried the telnet thing to mail-abuse. Funny though, my ACL rules messed
it up bigtime since if you attempt a relay via my machine and it's denied,
you're immediately locked out and further connections are refused.
I suppose that could be annoying depending upon where one sends email to.
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Lab tests show that use of micro$oft causes cancer in lab animals