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Exchange 365 : Migrate Local Exchange 2003 to Exchange Online (Office 365)


When you want to migrate local Exchange 2003 of Exchange 2007 users to exchange online, follow these steps.

Login to your Exchange Online portal, and go to recipients.

Click on Migration => Click on the ‘+’ sign to ADD => Select Migrate to Exchange Online


Select Staged migration for Exchange 2003 / Exchange 2007 and click Next


Select File, to choose your .csv file


Your .csv file should look like this.


Check the file name and click Next


Fill in the internal Exchange server name, and the External DNS name and click Next.


Give this migration batch a name and click Next


Select your admin account, select auto start the migration batch, and click New


In this picture 3 mailboxes have been migrated succesfull, click on Details for more information


Here you see the synchronised items


Select a user, and click one of the detail links to see more info about this user


Wait until all mailboxes have been migrated.


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