MC1303717 - Default compose font: Administrators can allow users to change the default font in Outlook for iOS and Android

Updated June 16, 2026: We have updated the content under 'who is affected'. Thank you for your patience. 

Introduction

To balance organizational branding with user flexibility, administrators will be able to control whether users can change the default compose font in Outlook for iOS and Android. When a default font name or size is set using Microsoft Intune app configuration policies, new configuration keys will allow administrators to decide if users can modify those defaults.

When this will happen

General Availability (Worldwide): We will begin rolling out in early June 2026 and expect to complete by late June 2026.

How this affects your organization

Who is affected

• Administrators managing Outlook for iOS and Android using Microsoft Intune
  • This release applies to phones, iPad, and tablets
• Users only if administrators enable user changes

What will happen

• Today, when a default compose font name or size is configured through Intune app configuration, users cannot change it.
• With this update, administrators will be able to optionally allow users to change:
  • The default font name
  • The default font size
  • Both
• Two new Intune app configuration keys will be available:
  • com.microsoft.outlook.Settings.defaultFontName.UserChangeAllowed
  • com.microsoft.outlook.Settings.defaultFontSize.UserChangeAllowed
• By default:
  • Both keys will be set to false, preserving existing behavior.
  • No changes will occur unless an administrator enables them.
• The keys will apply only when the corresponding default font setting is already configured.
• If a user changes the font:
  • The administrator-configured default will no longer apply for that user.
  • Future administrator updates will not override the user’s selection.
  • There is no automatic reset to the administrator-defined value.
• This feature will be off by default and requires explicit administrator configuration.

What you can do to prepare

No action is required to maintain the current locked-font behavior.

Optional (recommended):

• Review your Intune app configuration policies for Outlook for iOS and Android.
• To allow user changes:
  • Set com.microsoft.outlook.Settings.defaultFontName.UserChangeAllowed to true to allow font name changes.
  • Set com.microsoft.outlook.Settings.defaultFontSize.UserChangeAllowed to true to allow font size changes.
• Update internal documentation or helpdesk guidance as appropriate.

Compliance considerations