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In Pictures: 12 free Microsoft Exchange tools ever...
Exchange Bulk User Creation Tool v 2.0 by Andy Grogan
MVP Andy Grogan has been releasing various versions of his Exchange Bulk User Creation Tool for years. This is a great tool for both production and lab environments because it facilitates bulk mailbox creation without using the Exchange Management Shell, which is a feature missing from the Exchange Admin Center in Exchange 2013. EBUCT locates Active Directory Users without mailboxes, and you can select the ones you want to create mailboxes for and select the database in which you want those mailboxes to reside. Click Enable and you’re set. You can also use the Search Accounts field to locate specific accounts from within AD to enable.
In Pictures: 12 free Microsoft Exchange tools every IT admin will love