This article will show you how to create a new user mailbox in Exchange Server 2013.
The process of creating a new mailbox is now a one step process and one screen process compare to the past were you had to go through a few screens.
To create a new user mailbox Log in to EAC (https://exchangeserver/ecp)
Once you logged in to the EAC go to Recipients -> Mailboxes -> and Click on the + Icon
Fill in all the information and Click save