Microsoft 365 Message Center ArchiveM365 Archive

Exchange Online

Message Center and Roadmap announcements for this Microsoft 365 service.

MessageActions
MC1267871
Outlook for Android: Unified user interface in text, image and zip previewers
Apr 1, 2026|Exchange Online
MC1191578Major
Update to EWS Access for Kiosk / Frontline Worker Licenses
Dec 2, 2025|Exchange Online
MC1385580
Grouped notifications in Outlook
Jun 9, 2026|Exchange Online
MC1384419Major
Improved PDF preview in Outlook for iOS
Jun 8, 2026|Exchange Online
MC1093912
Microsoft Outlook for iOS/Android: Improved Contacts with profile enrichment and duplicate management
Jun 13, 2025|Exchange Online
MC1125491
Microsoft Outlook for Windows: Add attachments while offline
Jul 30, 2025|Exchange Online
MC1269211
Clearer RSVP selection in Outlook Mobile
Apr 3, 2026|Exchange Online
MC1338827
Microsoft Teams: Voicemail transcription service migration and new languages
Jun 3, 2026|Exchange Online
MC1338816Major
New Outlook for Windows becomes available for GCC High and DoD
Jun 3, 2026|Exchange Online
MC1227623
Change meeting organizer via PowerShell cmdlet in Exchange Online
Feb 6, 2026|Exchange Online
MC1239176
Outlook: Delimiter setting admin policy
Feb 26, 2026|Exchange Online
MC1193692
Microsoft 365: Enrich profile cards with custom properties from third-party systems
Dec 10, 2025|Exchange Online
MC1323250MajorAction by Jul 30, 2026
[Action Required] Update scripts using Get-MailDetailTransportRuleReport and Get-MailTrafficPolicyReport
May 26, 2026|Exchange Online
MC1310680
New Outlook for Windows: LDAP support for S/MIME certificate lookup
May 14, 2026|Exchange Online
MC1302908
Outlook: Support for storing S/MIME certificates in contacts in new Outlook
May 6, 2026|Exchange Online
MC1323263
Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items
May 26, 2026|Exchange Online
MC1319208
Microsoft Outlook: External email tag now supported in Inbox Rules
May 22, 2026|Exchange Online
MC1243552
High Volume Email for Microsoft 365 now generally available
Mar 4, 2026|Exchange Online
MC1304290Major
2026 Microsoft 365 Packaging Update
May 8, 2026|Exchange Online
MC1315220Major
Outlook on the web: New setting to use data classification services for DLP evaluation
May 18, 2026|Exchange Online
MC1309747
Planner is now available in Outlook and Microsoft 365 Copilot
May 13, 2026|Exchange Online
MC1248393
Outlook Mobile: Follow a meeting option
Mar 10, 2026|Exchange Online
MC1247891
Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android
Mar 9, 2026|Exchange Online
MC1304287
Microsoft Exchange Online: Upcoming secure-by-default changes for Exchange APIs
May 8, 2026|Exchange Online
MC1303717
Default compose font: Administrators can allow users to change the default font in Outlook for iOS and Android
May 7, 2026|Exchange Online
MC1129718
New Feature: Account Manager in Outlook for Windows
Aug 5, 2025|Exchange Online
MC1301802
Change Optics report for Exchange Online begins public preview
May 5, 2026|Exchange Online
MC1245222
Outlook: Share Word, Excel and PowerPoint local files via the new Outlook for Windows
Mar 5, 2026|Exchange Online
MC1294524
Microsoft Exchange Online: Dynamic distribution groups will populate membership faster on creation and modification
Apr 28, 2026|Exchange Online
MC1293480MajorAction by Jun 29, 2026
Exchange Online: Retirement of legacy TLS versions for POP and IMAP connections
Apr 27, 2026|Exchange Online
MC1272554MajorAction by Jul 5, 2026
Top domain mail flow report in Exchange Online is retiring
Apr 6, 2026|Exchange Online
MC1269216
Outlook for Android and iOS: Support for shareable links beautification and permissions in meeting description
Apr 3, 2026|Exchange Online
MC1267870
Outlook for iOS: New attachment actions and updates to previewer experience
Apr 1, 2026|Exchange Online
MC1248389Major
Retirement of -Credential parameter when connecting to Exchange Online PowerShell
Mar 10, 2026|Exchange Online
MC1224565MajorAction by Mar 22, 2026
Trust DigiCert Global Root G2 certificate authority to avoid Exchange Online email disruption
Jan 30, 2026|Exchange Online
MC1227454Major
Exchange Web Services (EWS) retirement update
Feb 5, 2026|Exchange Online
MC1226222
Prevent/Fix: Guidance for On-Premises Connectors Configuration
Feb 2, 2026|Exchange Online
MC1226749Major
Outlook Web App: OneView and TrueTime features will retire
Feb 4, 2026|Exchange Online
MC1048624MajorAction by Jul 1, 2026
DNS Provisioning Change
Apr 4, 2025|Exchange Online
MC1143991
Limiting onmicrosoft domain usage for sending emails
Aug 29, 2025|Exchange Online
MC676299Major
Retirement of Exchange Web Services in Exchange Online
Sep 21, 2023|Exchange Online
MC744113Archived
Microsoft Defender for Office 365: New Quarantine release details
Mar 18, 2024|Exchange Online
MC744115Archived
Microsoft Outlook Mobile: Open a Teams Meeting chat from the calendar
Mar 18, 2024|Exchange Online
MC744122Archived
Microsoft Outlook Mobile: To Do integration
Mar 18, 2024|Exchange Online
MC715428ArchivedMajor
Retirement of entities in Outlook for contextual add-ins
Feb 13, 2024|Exchange Online
MC714181Archived
Outlook Mobile: Removing the Sections view in the Feed tab
Feb 9, 2024|Exchange Online
MC716665Archived
Microsoft Exchange admin center: new troubleshooting option
Feb 16, 2024|Exchange Online
MC716666Archived
Improving licensing checks for secondary accounts in the new Outlook for Windows
Feb 16, 2024|Exchange Online
MC720777Archived
Microsoft Exchange Online: Release of View Another Mailbox feature in the new Exchange admin center (EAC)
Feb 28, 2024|Exchange Online
MC718755Archived
Microsoft 365: Release of In-Person Events (IPE) including Hybrid RSVPing (HRSVP)
Feb 23, 2024|Exchange Online
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