Have exchange 2003 with blackberry server, need to move to exchange 2010

Have exchange 2003 with blackberry server, need to move to exchange 2010

I need to determine how to proceed with the move without killing the blackberry server.

I have installed exchange2010 and want to set up active sync in it.
Will it work on the 2010 exchange server if I do not move the mailboxes?
If I move the mail boxes to the 2010 exchange, will the blackberry server still work?
I plan to route port 443 to 2010 server an skeet port 25 at the old exchange, or is there a better way
What else do I need to watch out for.
amcotechAsked:
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AmitConnect With a Mentor IT ArchitectCommented:
Yes
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AmitIT ArchitectCommented:
First you nee to upgrade to latest BES version. I guess BES 5 or above. Then you need to set throttling policy on you Exchange server for your BES Service account. Also, modify the NSPI value.

Next Active Sync is enabled by default for user resides on 2010 server. So, when you move the mailbox to 2010 Active Sync is enabled. Now as admin you need to publish the Active sync services. Via TMG. Then user can use it.
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amcotechAuthor Commented:
we do not want to use bb server in future.  Exchange ActiveSync is where we are going to use.  I have one user out of the country I do not want to interrupt in the short term.
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AmitIT ArchitectCommented:
Keep that one user on old 2003 server until you migrate all other user to 2010. Lastly, move this user also to 2010 and remove BB and use Active sync.
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amcotechAuthor Commented:
SO, I can completely set up 2010, all roles , everything except move the one users mailbox?
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amcotechAuthor Commented:
I moved 3 mailboxes and they do not receive mail from outside. any ideas? do I need to add a connector.  I did not ass any connectors at all.
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