You need to edit the reg. for exchange to tell it to use 2 ports
instead of picking ports at random. The link I found was:
http://support.microsoft.com/support/kb/articles/Q148/7/32.asp
Then you open up the ports you "hard coded" into exchange up.
>We are attempting to allow the Exchange server to communicate through a
>firewall type setup to a second exchange server. This is an internal
>firewall, and we need to allow the two servers to pass mail to the
>different groups.
>
>What I am interested in finding out is the ports which will need to be
>opened on the firewall. Has anyone done this before, and if so, what
>ports does it communicate upon.
>
>Thanks
>Jonathan
>
>
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