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Will there be an outage during the mailbox move? in exchange 2010

Will there be an outage during the mailbox move?  if we are moving mailboxes from exchange 2007 to 2010 during box 2 box migration.
3 Solutions
Yogesh_Exchange_ExpertAuthor Commented:
Also tell me one thing exchnage 2010 support outlook 2003 clients or not.
As a matter of fact, Exchange needs to be running while you perform a mailbox move. The only thing would be that the mailbox disconnects while it is migrating but this is fine as long as Outlook cache mode is setup on the client stations. Outlook 2003 is supported but you will need to install the Exchange online connector on the workstations with outlook 2003 installed. You can download that at the following link: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=604a539a-5ec1-4fb2-a3cf-60076aa17618
The mailbox will continue to function - but may disconnect/reconnect from Outlook.
If the user is in cached mode they will be fine. If not cached mode, then may hang for a short spell.
Senthil KumarCommented:
Transitioning from Exchange 2007 to 2010 does not need a outage . The mail box move can happen while the exch2007 users are online.Any email sent by exch 2007 users will be held in HT server and will be released once the migration is completed.User needs to restart the outlook once the migration is completed to accept the new changes.


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