migration of remote rpc over http user mailboxes

we are migrating from one exchange 2003 sp2 server to another exchange 2003 sp2 server same domain (need larger server) our outlook 2003 in cached mode users  are connected with rpc over http from a remote location  in a singer server setup. The question I have is as we migrate the mailboxes from server 1 to server 2 , will the users need to re-sync their mailboxes from scratch (some mailboxes are 10+ gb) or will they just connect to server 2 upon next outlook login and see that all of the mail is the same?


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No - their .OST files will be valid and outlook will continue to use them.....it will not need to syn all mail again.

I'm pretty sure you'll want to leave the 1st (old) server online after the move, until all clients have connected once and been redirected....it should happen automatically as long as the original server is still online. I would suggest testing this once to verify.
compsyssupportAuthor Commented:
thanks for the info but a am looking for a more definitive answer. like a msft KB article.
This is the closest I could find:

It can't take more than 10 minutes to try it with a test account. But I'll post back if I find a msft article....

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