Great Circle Associates Firewalls
(October 1997)
 

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Subject: RE: what ports to pass for exchange/outlook
From: Russ <Russ . Cooper @ rc . on . ca>
Date: Tue, 7 Oct 1997 07:56:28 -0400
To: "'Noam Rathaus'" <dolittle @ israelmail . com>, firewalls @ GreatCircle . COM

>Unless configured otherwise, it will use port 139, (RPC) and then
>a dynamic address above 1024 (TCP).

It will also use TCP135 to get to the RPC EndPointMapper and figure out
what higher port to use for the Information Store and Directory Store
(which, as Noam said, can be configured to be a static port so you don't
need to leave a range open on your FW). You can set it to use encrypted
communications in the Outlook Client's Remote Mail setup. You'll need to
put an entry in your client's LMHOSTS file as well so it knows where to
find your Exchange Server.

Cheers,
Russ


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From: Paulo Augusto Rosa <par @ ime . usp . br>
Next: RE: VPNs and PPTP
From: Russ <Russ . Cooper @ rc . on . ca>
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From: Noam Rathaus <dolittle @ israelmail . com>
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