Enable or disable Exchange ActiveSync access to mailboxes in Exchange Server
Article
ActiveSync is a client protocol that lets users synchronize their Exchange mailbox with a mobile device. By default, ActiveSync is enabled on new user mailboxes. Disabling ActiveSync on a mailbox prevents the user from synchronizing their mailbox with a mobile device (by using ActiveSync).
Administrators can use the Exchange admin center (EAC) or the Exchange Management Shell to enable or disable Exchange ActiveSync access to a mailbox.
You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Exchange ActiveSync settings" entry in the Clients and mobile devices permissions topic.
Enable or disable Exchange ActiveSync access to a single mailbox
Use the EAC to enable or disable Exchange ActiveSync access to a mailbox
In the EAC, go to Recipients > Mailboxes.
In the list of mailboxes, find the mailbox that you want to modify. You can:
Scroll through the list of mailboxes.
Click Search and enter part of the user's name, email address, or alias.
Click More options > Advanced search to find the mailbox.
Once you've found the mailbox that you want to modify, select it, and then click Edit.
On the mailbox properties page that opens, click Mailbox features.
In the Mobile Devices section, configure one of these settings:
If ActiveSync is enabled on the mailbox, you'll see a Disable Exchange ActiveSync link. Click the link to disable ActiveSync, and then click Yes in the warning message that appears.
If ActiveSync is disabled on the mailbox, you'll see a Enable Exchange ActiveSync link. Click the link to enable ActiveSync.
When you're finished, click Save.
Use the Exchange Management Shell to enable or disable Exchange ActiveSync access to a mailbox
To enable or disable ActiveSync access to a single mailbox, use this syntax:
For detailed syntax and parameter information, see Get-Mailbox and Get-User.
How do you know this worked?
To verify that you've successfully enabled or disabled Exchange ActiveSync access to a mailbox, do any of these steps:
In the EAC, go to Recipients > Mailboxes > select the mailbox > click Edit > Mailbox features > and verify the Exchange ActiveSync value in the Mobile Devices section.
If ActiveSync access is enabled for the mailbox, you'll see Disable Exchange ActiveSync.
If ActiveSync access is disabled for the mailbox, you'll see Enable Exchange ActiveSync.
In the Exchange Management Shell, replace <MailboxIdentity> with the identity of the mailbox (for example, name, alias, or email address), and run this command:
PowerShell
Get-CasMailbox -Identity"<MailboxIdentity>"
Use the same filter that you used to identify the mailboxes, but use the Get-CasMailbox cmdlet instead of Set-CasMailbox. For example:
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