Managing a new Exchange Server 2016 EAC having your mailbox on a previous version

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During the transition between Exchange Server 2010/2013 to Exchange Server 2016, before moving the mailboxes any administrator that tries to access the EAC will be redirected to the legacy system.


In order to be able to manage it, the solution is simple, we just need to work on the URL, using the following example:


The result is shown in the image below.

Written by Anderson Patricio

Anderson Patricio

Anderson Patricio is a Canadian MVP in Cloud and Datacenter Management, and Office Server and Services, besides the Microsoft Award he also holds a Solutions Master (MCSM) in Exchange and several other certifications. Anderson has been contributing to the Microsoft Community with articles, tutorials, blog posts, twitter, forums and book reviews. He is a regular contributor here at,, and Anderson (Portuguese).