I can telnet to port 25 from both sides. but I cannot send from company 2 to company 1. Company 1 can send and receives some mail (not all) company 2 can send and receive everywhere except to company 1???
I think it is DNS. I still have to check with the ISP.
We are only getting some mail from outside our organisation. some messages are delivered fine. others are bounced back with NDR 4.4.7. Anyone got any ideas??
Running Exchange 2000 (SBS) I have tried sending into this server from various outside sources. some work fine some dont? Could it be...
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