Outlook: Emails marked with External to be supported as Rules conditions Beta
Data as of 3 hours ago (9 September 2026)
Status Launched
Release month June 2026
Release ring General Availability
Products Exchange Outlook
Cloud instances DoDGCCGCC HighWorldwide
Platforms AndroidDesktopMacWebiOS
Description
The External tag on an email, set by the ExternalInOutlook feature, will now be usable as a condition in Outlook Inbox Rules. This change also makes available the ability to create or modify these Rules on the new Outlook for Windows, Outlook Web, and Outlook for Mac.
Change history
Added to the roadmap 21 May 2026. Tracked here since 1 September 2026. Earliest target we recorded: June 2026 (since tracked — Microsoft may have moved it before we started watching).
Nothing has changed on this item since tracking began on 1 September 2026. Changes appear here as Microsoft updates the feed.