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Do you mean solely for allowing incoming clients to connect to OWA from the outside world? &nbsp;Assuming you have enabled SSL for your OWA servers (and please tell me you've done this), TCP 443.<br />
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If you are trying to configure communications between FE servers and your DCs/GCs, follow the recommendations in this article: <a href="http://www.msexchange.org/tutorials/OWA_Exchange_Server_2003.html" rel="ugc">http://www.msexchange.org/tutorials/OWA_Exchange_Server_2003.html</a>
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Do you mean solely for allowing incoming clients to connect to OWA from the outside world?  Assuming you have enabled SSL for your OWA servers (and please tell me you've done this), TCP 443.

If you are trying to configure communications between FE servers and your DCs/GCs, follow the recommendations in this article: http://www.msexchange.org/tutorials/OWA_Exchange_Server_2003.html [http://www.msexchange.org/tutorials/OWA_Exchange_Server_2003.html]

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I cannot open 443 up on the router at this point. is it mandatory to open this to get OWA to work at any level?
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I cannot open 443 up on the router at this point. is it mandatory to open this to get OWA to work at any level?

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anyone this seems like it could be a simple question!
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anyone this seems like it could be a simple question!

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What port has to be forwarded on the router to allow Outlook Web Access?
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What port has to be forwarded on the router to allow Outlook Web Access?

Exchange Outlook Web Access

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.