Microsoft Microsoft 365 Apps Current Channel Update Version Version 2604 (Build 19929.20172)
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Update Summary
Version 2604 (Build 19929.20172) resolves an Outlook issue where sending mail failed when multiple Exchange accounts were configured.
Update Details
Bug Fixes
- Fixed an Outlook issue where sending mail failed when multiple Exchange accounts were configured.
Product Information
Vendor: Microsoft
Product: Microsoft 365 Apps
Product type: Other
Platform: Windows
Variant: Current Channel
Version: Version 2604 (Build 19929.20172)
Vendor information published: May 14, 2026
Original release notes: View on vendor site
Published on updatealert.io: Jun 4, 2026
Description: Office productivity applications for business communication and document work.