Label "External" for emails sent to recipients not in the same domain.

17/05/2021

Table of contents

What is changing?

Google is adding a new “External” label to email chains that include recipients outside of your company. This adds Existing external receiver warning banner, displayed when responding to emails sent from outside your organization

The “External” label will be displayed on Gmail web interface and Android devices. Google will provide an update when the feature becomes available on iOS.

Important Note: Administrators can enable or disable these warning labels for their organization.

External labels and warning banners appear when interacting with individuals outside the domain.

Who is affected?

Admins and end users

Why it’s important

The “External” label and the reply warning banner and label are helpful reminders for users to treat external messages with caution. This can help avoid accidentally sharing confidential information with recipients outside of their organization.

Additional details

Subdomains and aliases will not be labeled as “External”.

Getting started

Admins: Visit the Help Center to learn more about how enable or disable external recipient alerts in Gmail. Note: This setting controls both the “External” label and the warning banner.
End User: No action required. When enabled by your administrator, you'll see an “External” label and warning banners when interacting with or replying to email threads with recipients outside of your organization or contacts.