By default windows only allows from port 1024 to port 5000.
4000 outbound SMTP sessions is 2800+ more the MS SMTP will ever need.
> It acts > like it uses > the 2nd and/or 3rd IP Address on the NIC when under heavy load or > something. > And this breaks the Reverse DNS, Host Name, IP Address > relationship for the > SMTP Server.
So IP aliases are a bad idea on that box, remove them.
Len
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