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gregurl

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Open additional Mailbox on different versions of Exchange 2003/2010

I have a user on Exchange 2010 in my organization and a mailbox on Exchange 2003. Is it possible to have the Exchange 2010 users using Outlook add an additional mailbox hosted on Exchange 2003.

Also, can it work the reverse way a Exchange 2003 user add an additional mailbox on Exchange 2010?
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rehamris
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Avatar of Suliman Abu Kharroub
Grant permission. then go to outlook account settings --> more setting --> advanced and add the additional mailbox.
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gregurl

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Does using RPC/HTTP make a difference for an Exchange 2010 users?
no it should not.
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I am able to open and add additonal mailboxes whether on Exchange 2003 or Exchange 2010.