Mobile device doesn't connect to Exchange Online through Exchange ActiveSync after the user's mailbox is migrated to Exchange Online

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Article ID: 2293029 - View products that this article applies to.
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PROBLEM

A user's Microsoft Exchange mailbox is migrated to Microsoft Office 365 from an on-premises or hosted Exchange environment. However, after the migration, the user's mobile device can't connect to Microsoft Exchange Online through Microsoft Exchange ActiveSync.

This occurs if the mobile device isn't automatically updated to include the location of the Exchange Online mailbox. The mobile device has to be redirected to the new mailbox server location.

SOLUTION

Set up Exchange ActiveSync again on the mobile device so that you can get the latest version of Exchange ActiveSync. To set up Exchange ActiveSync, go to Phone and tablet setup reference, and then follow the steps for your device.

MORE INFORMATION

Still need help? Go to the Office 365 Community website.

Properties

Article ID: 2293029 - Last Review: July 7, 2014 - Revision: 37.0
Applies to
  • Microsoft Exchange Online
Keywords: 
o365 o365a o365e o365022013 o365p o365m kbgraphic KB2293029

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