How to generate a warning message for external recipients

Problem

How can you generate a warning message to be displayed when sending emails to external recipients.

Environment

Gmail Web user interface

Solution

Go to your Google Admin console.
Go to Menu > Apps > Google Workspace > Gmail > End User Access.
Scroll to and click Warn for external recipients.
Check or uncheck the box to turn warnings on or off.
Click Save.

Note: Changes may take up to 24 hours to be visible, but usually they are reflected more quickly.

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Last updated 2023-10-11 UTC.