Exchange 2003 & MMIS 2002 Server ActiveSync

pts.
Tags:
Exchange security
Microsoft Exchange
Microsoft Windows
Windows
Currently, we are running Exchange 2000 cluster as back-end and another Exchange 2000 on our DMZ as front-end OWA server, all on Windows 2000 servers. We are also running another Windows 2000 server in our DMZ which we installed MMIS 2002 Server ActiveSync for some Wireless users. In the next couple of weeks we are planning to upgrade the back-end and front-end Exchange 2000 servers to Exchange 2003. Question 1: As ActiveSync is now part of Exchange 2003, do we have to install Exchange 2003 on the the server in our DMZ currenting running the MMIS 2002 ActiveSync or configure ActiveSync as on the OWA front-end in the DMZ when it is upgraged to Exchange 2003 as we prefer the Wireless devices connect via the DMZ not direct to the back-end Exchange server? Question 2: Can the MMIS 2002 ActiveSync co-exist with Exchange 2003 before the upgrade from Exchange 2000 to 2003 is completed?

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On my opinion, I would redefine your toology for a security point of view…

Put an ISA 2004 in the DMZ instead of your front end.
I think that you don’t need a F-E
Install Ex2K3 in your internal Exchange server.
Configure correctly Your ISA server and your Exchange server to forward OWA and ActiveSync traffic.

I’m still wandering if clusterd Exchange is worth it!

Comments welcomes

Daniel
Consultant

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