Outlook: add attachments while offline in the new Outlook for Windows Beta
Data as of 2 hours ago (9 September 2026)
Status Launched
Release month October 2025
Release ring General Availability, Targeted Release
Products Outlook
Cloud instances GCCWorldwide
Platforms Desktop
Description
We are adding more functionality to offline mode in the new Outlook for Windows. You will now be able to add attachments while drafting your email without an internet connection. #newoutlookforwindows
Change history
Added to the roadmap 10 June 2025. Tracked here since 1 September 2026. Earliest target we recorded: October 2025 (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.