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Exchange, Outlook, & the Firewall

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All Forums >> [Microsoft Exchange 2000] >> Server Security >> Exchange, Outlook, & the Firewall Page: [1]
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Exchange, Outlook, & the Firewall - 21.Nov.2002 12:15:00 AM   


Posts: 1
Joined: 21.Nov.2002
From: Louisville
Status: offline
I have a weird enviroment. I work at a satilite office and my people want to use Outlook--not OWA or Outlook Express. The corporate office is running Ex2k. I have a ISA server as a firewall, but my clients cannot connect to exchange server. I can hit the server through a ping and if I go around the firewall outlook works fine. So to recap, the OUTLOOK CLIENTS are in the firewall and the exchange is external.

What ports/protocols do I have to open up to be able to hit the exchange box from my outlook clients?
Post #: 1
RE: Exchange, Outlook, & the Firewall - 21.Nov.2002 2:05:00 AM   


Posts: 479
Joined: 7.Apr.2002
From: United Kingdom
Status: offline
Here are a couple of links that might help, my personal recommendation however is to have the users establish a VPN to the Exchange server, otherwise you will be turning your firewall into swiss cheese.


(in reply to terrilgrey)
Post #: 2

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