View or configure mailbox policy properties in Exchange Online for Outlook on the web and the new Outlook for Windows

After you create a mailbox policy for Outlook on the web and the new Outlook for Windows, you can configure a variety of options to control the features available to users in Outlook on the web (formerly known as Outlook Web App) and the new Outlook for Windows. For example, you can enable or disable Inbox rules or create a list of allowed file types for attachments.

For more information about mailbox policies for Outlook on the web and the new Outlook for Windows, see Outlook on the web mailbox policies.

What do you need to know before you begin?

• Estimated time to complete each procedure: 3 minutes.

• You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Outlook on the web mailbox policies" entry in the Feature permissions in Exchange Online article.

• To open the Exchange admin center (EAC), see Exchange admin center in Exchange Online. To connect to Exchange Online PowerShell, see Connect to Exchange Online PowerShell.

• For information about keyboard shortcuts that may apply to the procedures in this article, see Keyboard shortcuts for the Exchange admin center.

Tip

Having problems? Ask for help in the Exchange forums. Visit the forums at Exchange Online or Exchange Online Protection.

Use the EAC to view or configure mailbox policies for Outlook on the web and the new Outlook for Windows

1. In the EAC, go to Permissions > Outlook Web App policies and select the policy that you want to view or configure.

2. The Details pane shows the enabled features in the policy. To see more information, click Edit . In the properties window that opens you can view and configure the following settings:

   • On the General tab, you can view and edit the name of the policy.

   • On the Features tab, use the check boxes to enable or disable features. By default, the most common features are displayed. To see all features that can be enabled or disabled, click More options.

     Note

     You can configure settings for individual users by using the Set-CASMailbox cmdlet in Exchange Online PowerShell.

   • On the File Access tab, use the Direct file access check boxes to configure the file access and viewing options for users. File access lets a user open or view the contents of files attached to an email message.

   File access can be controlled based on whether a user has signed in on a public or private computer. The option for users to select private computer access or public computer access is available only when you're using forms-based authentication. All other forms of authentication default to private computer access.

   • On the Offline access tab, use the option buttons to configure offline access availability.

3. When you're finished, click Save to update the policy.

Use Exchange Online PowerShell to modify mailbox policies for Outlook on the web and the new Outlook for Windows

To modify a mailbox policy for Outlook on the web and the new Outlook for Windows, use the following syntax:

Set-OwaMailboxPolicy -Identity "<Policy Name>" [Settings]

This example enables calendar access in the default mailbox policy.

Set-OwaMailboxPolicy -Identity Default -CalendarEnabled $true

For detailed syntax and parameter information, see Set-OwaMailboxPolicy.

Use Exchange Online PowerShell to view mailbox policies for Outlook on the web and the new Outlook for Window

To view a mailbox policy for Outlook on the web and the new Outlook for Windows, use the following syntax:

Get-OwaMailboxPolicy [-Identity "<Policy Name>"]

This example returns a summary list of all policies in the organization

Get-OwaMailboxPolicy | Format-Table Name

This example retrieves detailed information for the policy named Executives.

Get-OwaMailboxPolicy -Identity Executives

For detailed syntax and parameter information, see Get-OwaMailboxPolicy.

How do you know this worked?

To verify that you've successfully modified an Outlook on the web mailbox policy, do either of the following steps:

• In the EAC, click Permissions > Outlook Web App Policies, select the policy, click Edit , and verify the properties of the policy.

• In Exchange Online PowerShell, replace <Policy Name> with the name of the policy, and run the following command to verify the settings:

  Get-OwaMailboxPolicy -Identity "<Policy Name>"