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open relay?

Posted on 2004-10-18
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Last Modified: 2013-12-04
The tests say my server has no open relay.  I have check via telnet and its not an open relay - yet in exhcnage 2000 smtp sessions shows logins from spammers. queues fill up with emails in seconds. Any ideas?
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Question by:alfanoja
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Chris Dent earned 250 total points
ID: 12342523

Start changing network passwords?
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by:msice
ID: 12343399
Are you sure these are not just incomming spam queues?
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by:alfanoja
ID: 12344170
i am going to try changing passwords & they look to be outgoing queues.
thanks
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Expert Comment

by:JammyPak
ID: 12349121
you can still be getting flooded and not be an open relay..

make sure that your server is not replying to every bogus spam it receives
find the connecting ip address (it's probably one spammer) and try to block it at your firewall if possible
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