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Move Users From Exchange 2003 To Exchange 2007

ctsuhako asked
Medium Priority
Last Modified: 2012-05-11
I have been asked to move users on an Exchange Server 2003 running on SBS 2003 (Domain A) to an Exchange Server 2007 running on SBS 2008 (Domain B). There are about 10 users that need to be moved and the users have several aliases and there a several distribution lists that also need to be moved. The only thing that will be moved is the Exchange mailboxes, etc.; the users will remain on the SBS 2003 domain for file and print and all the other SBS 2003 functions. The SBS 2008 server is currently functioning well and has about 25 users. I have a pretty good handle on having the MX record for Domain A changed to send post-migration email to the SBS 2008 server, but when it comes to actually migrating the users' mailboxes I am unsure of the correct approach. Since these users do not exist on the SBS 2008 domain, I would assume that Step 1 would be to create these users and then Step 2 would be to use Exmerge on the 2003 server to .pst their mailboxes and the import them into 2008. I know this is overly simplistic, but I am looking for help in getting started. Thank you and please let me know if more info is needed.
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Thanks for the link, MegaNuk3. I don't know if this applies since we are only looking at moving the Exchange mailboxes from SBS 2003 to SBS 2008; the SBS 2003 will remain operational at the other location except that the mailboxes will now be residing on the SBS 2008 server. Most of the instructions/tutorials I have seen involve full server migration and this would not be the case here.

sekarc4u: On the first link, I don't believe that I can create a trust relationship between two SBS servers.
Second link applies to Exchange 2010; That looks interesting, but I don't know if there are enough differences between Exchange 2010 and 2007 to use that method.

Thank you both.

Sekar ChinnakannuStaff Engineer
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