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Can I require all outbound mail to match an account on our server?
We're battling a worm or something that periodically drops spam and a mailing list into our server. All the outbound messages it sends has "<>" as the sender...we found that out from the few DNR's that end up in our outbound queue. (This is NOT an open relay situation...we locked that...- John0192
- Thread
- Replies: 3
- Forum: Microsoft: Exchange
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Closing Open Relay
There is also a good possibility that you have a worm or trojan of some sort on your machine. We have exactly the same symptoms as you are experiencing, and we shut down our open relay over a month ago. We're running a Watchguard Soho firewall and TrendMicro's antivirus software, but it got...- John0192
- Post #7
- Forum: Microsoft: Exchange
