About a month ago we had a PC on the network that was sending out spam. It was taken off the network and reloaded. I went on as manay blacklist sites as I found and requested our IP of the blacklist. Slowly but surly we were able to send out to those domains. I dont this we were taken of the Verizon.net blacklist though. The reason why is because in system manager runnng exchange 2003 on a server 2003 enterpise system shows that verizon.net emails are stuck in the outgoing que.
If we were in the blacklist, wouldnt the emails go out but we would get a bounce back or would they get stuck in the que. Yahoo, Aol, Msn, etc all work fine. What can be the cause of this?
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