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I moved them all but as you two guys said that users delete or moving attachment. In my case I believe because most of users this year made their personal folder default mail location as we asked them to do but the size of their mailboxes the white space as you mentioned remain in old MailDB. Great now I feel better, We are in Holidays until coming Sunday I can sleep in peace now.
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My Mail Database size is 230 GB in Exchange 2003 After I moved all mailboxes from Exchange 2003 to Exchange 2007 I notice the size of Database become 109 GB. My question is that fine ?
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My Mail Database size is 230 GB in Exchange 2003 After I moved all mailboxes from Exchange 2003 to Exchange 2007 I notice the size of Database become 109 GB. My question is that fine ?

I moved them all but as you two guys said that users delete or moving attachment. In my case I believe because most of users this year made their personal folder default mail location as we asked them to do but the size of their mailboxes the white space as you mentioned remain in old MailDB. Great now I feel better, We are in Holidays until coming Sunday I can sleep in peace now.

Mail Database reduced to half after moving Mailboxes ?

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.