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Revert Exchange 2007 mailboxes

Posted on 2009-02-09
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Hi all,

It´s possible to revert Mailbox versión from Exchange 2007 to Exchange 2000 once is migrated via move-mailbox cmdlet ?

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Question by:fpuig
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by:Mestha
ID: 23594047
You can move it back if you want to, if that is what you mean.

-M
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by:fpuig
ID: 23598170
No exactly. The mailbox change its version number once you migrate. The question is what version number have when back to Exchange 2000, the version number of 2000 or 2007 ?
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by:Mestha
ID: 23599001
I have been working with Exchange for many years, and I was not aware of a version number on the mailbox. Where are you seeing that? Why is it an issue for you?
I have moved mailboxes between versions of Exchange in the past with zero impact to the operation of the mailbox.

-M
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by:fpuig
ID: 23599551
Answering...

Version number is important if have impact about operations, for example, many cmdlets control the version of the mailbox to apply some changes (language settings by default is a case).

When you´re transitioning or migrating between Exchange 2000 and Exchange 2007 you apply cmdlet´s like Move-Mailbox which change the mailbox version to do another operations with the rest or cmdlets, then you make operations with those cmdlets, but....if you want back to Exchange 2000 and move the mailbox to a Exchange 2000 server, how are now that settings ?. If the version number goes back, what happend with the settings? simply loose ?, the client opens the mailbox and what happend with the changes ?

Thanks.
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by:Mestha
ID: 23600135
I can genuinely say that is the first time I have heard of mailbox version, so I am unable to answer your question. I can find nothing on the Microsoft KB about that, so either have to presume it isn't an issue, or it isn't something that Microsoft have seen. You may have to take it to Microsoft to get a clear answer.

-M
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fpuig earned 0 total points
ID: 23620260
Hi Mestha,

The version number appears in error context when you try to apply some Cmdlets over legacy Exchange 2000-2003 mailboxes, that means some Cmdlets are applicable only over migrated mailboxes with the new version number, really is not an issue, it´s the way EMS Exchange 2.007 and powershell can work with mailboxes.

I work every day with Exchange in many clients and this is a problem only if you want roll back your transition or migrating opperations in a failed environment.

Thanks for all, i will try it with Microsoft, if i have answers i will post.

Fpuig



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