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Old 08-24-2006, 03:36 AM   #1 (permalink)
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Default Implementing BES with Exchange 2000

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We are currently looking into implementing BES 4.1 into our Organisation and I am trying to understand the best way to design it - any help with the following questions would be good.

1. I have 8 exchange servers in 5 Domains in one AD forest - will 1 BES server be able to access the mailboxes on ALL exchange servers or will they all have to be moved to one exchange server?

2. Do we need to have the Blackberry Router service on a box in a DMZ or is BES 4.1 secure enough just to sit behind our Corporate firewall. We are using Orange as a supplier and they say yes but the Blackberry docs I have read conflict this and say no!
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Old 08-24-2006, 04:32 AM   #2 (permalink)
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1. Multiple Exchanges accessing a single BES are fine. If they are cross domain this is not a supported configuration but you can get it working by having trust relationships set up between Exchanges. One question back to you, are all Exchanges the same version (2000) or will this be a mixed mode set up with different versions of Exchange?

2. There's a lot of security docs flying around at the moment about segmenting the BES. To be honest I wouldn't worry about it, having it on one box behind the firewall is fine, I personally wouldn't want to put anything in the DMZ.
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Old 08-24-2006, 04:38 AM   #3 (permalink)
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thanks for that.

All my exchange servers are 2000 sp3.

As the exchange servers are in the same Org then they all have trust relationships by default - is that right?
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