I wanted to know if Ex-Merge can be used to transfer all mailboxes at once.
> Yes you will be able to.
If I select all of the users in the 2003 echange will it copy them all to individual PST's or one big PST?
> It will copy them to individual .pst files.
Can I use this to move the mailboxes from 2003 to 2007?
No. You will not be able to move mailboxes from E2K3 to E2K7.
Apart from this, i did see that "The 2007 will be in a different Domain. The 2007 will be in Domain A while Exchange 2003 will be in Domain B".
So, why not try a cross forest move mailbox???
The users will be moved one by one.
You need to use the ADMT tool for the adcive directory user migration.
Steps:
1. Have a 2 way trust created between both the domains.
2. To move only the mailboxes of users of a specific OU use the command in Exchange Shell:
Get-user -DomainController DCname.domainname -Credential $SourceCredential –organizationalUnit OUname | move-mailbox -TargetDatabase "EXCHANGESERVERNAME\First Storage Group\Mailbox Database" -SourceForestGlobalCatalog DCname.domainname-GlobalCatalog TargetGC.domainname -DomainController TargetDC.domainname -NTAccountOU "OU=OUname,OU=OUname,OU=NLD,DC=somedomain,DC=somedomain,DC=local" -SourceForestCredential $SourceCredential -TargetForestCredential $TargetCredential
Ref to: Exchange 2007 migration overview -
http://msexchangeteam.com/archive/2006/10/27/429522.aspx
- Nagesh
