Ok, so I had somehow setup an open relay.. I narrowed it down, and got the open relay fixed, however my Spool is totally full with about 100000 messages.. all spam.. and when i clear them out, it rebuilds to another 50000 mesages.. none of my machines are infected, and the exchange server's queue is clear.. can anyone help?? how do I stop this? And if I try to telnet to the IP's i have on port 25, they don't answer.. the CPU is maxed out, (I have 2 xeon 2.5ghz processors, and 2.5gb of ram)..
My system's setup right now is the following:
static IP forwarded to exchange mail server thru astaro. smtp proxy is turned on, but even with it off it still doesnt help.. smtp proxy is set to only allow my upstream mail servers access on port 25 as well as the packet forwarding.
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