> Few days back we put 2 ASSP servers in production in (testmode)
> except for DNSBL not in testmode. And it started filtering out lots of
> SPAM. :). CPU and Memory utilization was minimal.

well... I'd turn the HELO checks and the delaying "on" too; those won't
cause trouble but will directly reject connections from a lot of
spambots
the same goes for blocked IPs and senderbase white/black listing

> I setup the Maximum Sessions (maxSMTPSessions) to 200 on each
> server and also on the MTA server there is enough connections limit
> to allow all connections comming from the ASSP servers.

No need to to so, ensure to turn on the above and leave the connection
limit to the default, then keep an eye on the ASSP log checking for any
"connection limiting" messages, in such a case and ONLY in such a case
sightly raise the connection limit; also, and since you're at it, you
may also
reduce the connection timeout so that "hanging" connections will be
closed
and won't take up resources

> Sometimes it works and i get the SMTP server prompt.

are you running on windows ? If so, uninstall the IO:Socket::SSL module
and restart ASSP


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