How to Disable the External Sender Label in Microsoft 365 Outlook
Question details
The user wants to remove the 'EXTERNAL' label added to incoming emails originating from outside the organization in Microsoft 365 Outlook.
- Product
- Microsoft 365 Outlook
- Device & OS
- not provided
- Scenario
- Managing organization-wide email settings to reduce visual clutter in Outlook inboxes that receive a high volume of external emails.
- Observed behavior
- Incoming messages from outside the organization are automatically tagged with an 'EXTERNAL' label, creating visual clutter for users.
Ensure you have Microsoft 365 administrator privileges and access to Exchange Online PowerShell before attempting to modify organization-wide email labels.
Disable the External Label Using Exchange Online PowerShell
Administrators can use Exchange Online PowerShell commands to turn off the external sender identification feature for the entire organization.
The external sender identification feature is managed at the organizational level. Individual users cannot toggle this setting in their own Outlook client; it requires administrative access to Exchange Online.
Open PowerShell as an administrator and connect to Exchange Online using your Microsoft 365 administrator credentials.
Run the command 'Get-ExternalInOutlook' to verify the current status of the external sender identification feature in your organization.
Execute the command 'Set-ExternalInOutlook -Enabled $false' to turn off the external sender label across the entire organization.
Allow up to 24-48 hours for the changes to fully sync and reflect in all users' Outlook clients across the organization.
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Frequently Asked Questions
Why did Microsoft add the EXTERNAL label to Outlook emails?
The label was introduced as a security measure to help users easily identify emails originating from outside their organization, which can help prevent phishing and spoofing attacks.
Can individual users disable the EXTERNAL label in their own Outlook app?
No, the external sender identification feature is managed at the organizational level by a Microsoft 365 administrator and cannot be disabled by individual end-users from their application settings.
How long does it take for the EXTERNAL label to disappear after running the PowerShell command?
Once the administrator runs the Set-ExternalInOutlook command, it can take anywhere from 24 to 48 hours for the changes to fully propagate across all users and devices in the organization.
Can I exclude specific external domains from showing the EXTERNAL label instead of disabling it entirely?
Yes, administrators can use the AllowList parameter with the Set-ExternalInOutlook cmdlet to specify trusted domains or email addresses that will not receive the EXTERNAL label.
