Exchange Online Message Center Updates
All 109 Microsoft 365 Message Center announcements for Exchange Online.
- MC1551148: [Outlook for iOS and Android] Copilot Chat in Outlook UX improvements
- MC1488841: Microsoft Outlook: Update to default blocked file types in OwaMailboxPolicy
- MC1506730: Classic Outlook for Windows: Upcoming visual improvements and a more consistent Outlook experience
- MC1446796: Migrate Free/Busy, MailTips, and Calendar Sharing before EWS deprecation
- MC1492166: Microsoft Outlook: New event duplication capability
- MC1519843: New Outlook for Windows: All Accounts view brings email into a single inbox view
- MC1193692: Microsoft 365: Enrich profile cards with custom properties from third-party systems
- MC1540345: Action required: Update permissions for Exchange Online Admin API
- MC1540342: Action required: Exchange Online Admin API MailboxFolderPermission response update
- MC1539000: Microsoft Outlook: Search within a selected folder
- MC1245222: Outlook: Share Word, Excel and PowerPoint local files via the new Outlook for Windows
- MC1528007: Join button will require HTTPS meeting links
- MC1510951: Windows updates are available for 2026 time zone changes in Canada
- MC1526668: Change Optics Report
- MC1441784: Microsoft Copilot for Outlook: New Copilot entry point in Classic Outlook
- MC1472028: Outlook: Change the organizer of meetings
- MC1505607: Outlook: Reply With a Template in Rules
- MC1519861: Outlook: Copilot Prioritize feature will be retired
- MC1458484: Filter Messages by Events on Outlook Mobile
- MC1515939: Sending from Aliases
- MC1515932: External Recipients Banner on Outlook Mobile
- MC1191578: Update to EWS Access for Kiosk / Frontline Worker Licenses
- MC1511072: Microsoft Teams: Upcoming change to voicemail message delivery by email
- MC1511071: Action required: Review property changes for Exchange Online scenarios
- MC1509800: Microsoft Outlook for Android: Multi-select and bulk actions in search results
- MC1493186: Microsoft Outlook for Android and iOS: Send Availability functionality restored
- MC1492954: Microsoft Outlook: Themes by Copilot retirement
- MC1465780: Outlook for iOS and Android: Automatically apply email sensitivity labels from labeled attachments
- MC1490899: Microsoft 365: Targeted Release retirement
- MC1479509: Spell check before sending emails in new Outlook
- MC1479516: Microsoft Outlook: Link preview retirement
- MC1472022: [Outlook Mac] Purview Data Loss Prevention support for Calendar Events
- MC1472023: [Outlook Mobile] Purview Data Loss Prevention support for Calendar Events
- MC1472019: [Outlook Mac] Purview DLP Wait-on-Send Support
- MC1472021: [Outlook Mobile] Purview DLP Wait-on-Send Support
- MC1465779: Outlook for Mac: Sensitivity label recommendations and auto-labeling from attachments
- MC1338816: New Outlook for Windows becomes available for GCC High and DoD
- MC1485120: Outlook (new): Right-click to customize the classic ribbon
- MC1485116: Microsoft Exchange Online: Exchange Web Services (EWS) enforcement update for EWSAllowedAppIDs
- MC1483974: Action Required: Upgrade ExchangeOnlineManagement PowerShell Module to Version 3.10.1 or Later
- MC1472591: Enhanced security and access controls for Outlook attachments
- MC1458470: Simplified Copilot experience in Microsoft Outlook
- MC1479513: Outlook: Insert Symbols
- MC1469960: Microsoft Exchange Online: Review and configure EWSAllowedAppIDs before Exchange Web Services access changes
- MC1472598: Microsoft 365: Find more actions in the suite header menu
- MC1093912: Microsoft Outlook for iOS/Android: Improved Contacts with profile enrichment and duplicate management
- MC1470883: Microsoft Outlook for iPad: Minimize email drafts and return to them later
- MC1454996: Copilot Chat can float over your Outlook iPad and Mac window
- MC1437668: Microsoft Outlook for iOS and Android: Insert signature images from OneDrive
- MC1462923: Outlook for iOS: Minimum system requirements updated to iOS 26 and above
- MC1462922: Admin app retiring in Teams, Outlook and Microsoft365.com
- MC1462472: Microsoft 365 Copilot: Draft Outlook emails directly in Copilot Chat on mobile
- MC1447678: Microsoft Exchange Online: Prepare for Exchange Web Services retirement with EWSAllowedAppIDs
- MC1458476: Microsoft Outlook: Classic Outlook theme experience for Outlook on the web and Outlook for Windows
- MC1457230: Microsoft Outlook: Drag and drop calendar events to reschedule meetings
- MC1309747: Planner is now available in Outlook and Microsoft 365 Copilot
- MC1430542: Microsoft Outlook: Collaborate with Copilot while drafting email
- MC1452374: Microsoft Exchange Online: Retirement of the Other features page in Exchange admin center
- MC1420903: Exchange Online will prevent creation of duplicate Dynamic Distribution Groups
- MC1269211: Clearer RSVP selection in Outlook Mobile
- MC1430531: Microsoft Outlook: Meeting Insight is retiring
- MC1248393: Outlook Mobile: Follow a meeting option
- MC1248389: Retirement of -Credential parameter when connecting to Exchange Online PowerShell
- MC1423116: Microsoft Outlook for iOS and Android: Clearer Copilot availability in multi-account experiences
- MC1423106: Introducing cross-tenant message recall in Exchange Online
- MC1421966: Set and edit your work location from your Outlook Mobile calendar
- MC1293480: Exchange Online: Retirement of legacy TLS versions for POP and IMAP connections
- MC1227623: Change meeting organizer via PowerShell cmdlet in Exchange Online
- MC1304290: 2026 Microsoft 365 Packaging Update
- MC1303717: Default compose font: Administrators can allow users to change the default font in Outlook for iOS and Android
- MC1393802: Outlook for iOS and Android: Send Availability feature to be retired
- MC1267871: Outlook for Android: Unified user interface in text, image and zip previewers
- MC1385580: Grouped notifications in Outlook
- MC1384419: Improved PDF preview in Outlook for iOS
- MC1125491: Microsoft Outlook for Windows: Add attachments while offline
- MC1338827: Microsoft Teams: Voicemail transcription service migration and new languages
- MC1239176: Outlook: Delimiter setting admin policy
- MC1323250: [Action Required] Update scripts using Get-MailDetailTransportRuleReport and Get-MailTrafficPolicyReport
- MC1310680: New Outlook for Windows: LDAP support for S/MIME certificate lookup
- MC1302908: Outlook: Support for storing S/MIME certificates in contacts in new Outlook
- MC1323263: Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items
- MC1319208: Microsoft Outlook: External email tag now supported in Inbox Rules
- MC1243552: High Volume Email for Microsoft 365 now generally available
- MC1315220: Outlook on the web: New setting to use data classification services for DLP evaluation
- MC1261593: Outlook: Improved handling of disallowed and failed email reactions
- MC1247891: Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android
- MC1304287: Microsoft Exchange Online: Upcoming secure-by-default changes for Exchange APIs
- MC1129718: New Feature: Account Manager in Outlook for Windows
- MC1301802: Change Optics report for Exchange Online begins public preview
- MC1294524: Microsoft Exchange Online: Dynamic distribution groups will populate membership faster on creation and modification
- MC1272554: Top domain mail flow report in Exchange Online is retiring
- MC1272552: Workweek view for Outlook on iOS and iPad
- MC1269216: Outlook for Android and iOS: Support for shareable links beautification and permissions in meeting description
- MC1269213: New meeting response option: decline and propose a new time in Outlook Mobile
- MC1269212: New option to keep or delete meeting invitations after responding
- MC1267870: Outlook for iOS: New attachment actions and updates to previewer experience
- MC1266896: Changes to How Exchange Web Services (EWS) Is Controlled
- MC1260700: Outlook Mobile: New external image handling option for safe senders
- MC1259820: Offline attachments policy for the new Outlook for Windows
- MC1224565: Trust DigiCert Global Root G2 certificate authority to avoid Exchange Online email disruption
- MC1108848: Changing output format for some database properties in Exchange Online cmdlets
- MC1227454: Exchange Web Services (EWS) retirement update
- MC1226222: Prevent/Fix: Guidance for On-Premises Connectors Configuration
- MC1226749: Outlook Web App: OneView and TrueTime features will retire
- MC1048624: DNS Provisioning Change
- MC1092458: Microsoft Exchange Online: New Message Trace will be GA; legacy Message Trace will retire
- MC1197103: Exchange Online ActiveSync device support update
- MC1143991: Limiting onmicrosoft domain usage for sending emails
- MC676299: Retirement of Exchange Web Services in Exchange Online