Outlook: Reply With a Template in Rules
Email rules now support automated template responses
Outlook-Rules antworten jetzt automatisch mit Vorlagen
Exchange Online — Microsoft 365 changes
94 Microsoft 365 Message Center announcements and curated “What’s new” posts for Exchange Online, newest first. Services covered include Exchange Online, Microsoft Defender XDR, Microsoft Purview, Microsoft Teams, Microsoft 365 suite, Microsoft 365 apps, TECHCOMMUNITY.MICROSOFT.COM, Microsoft Bookings. Each entry links to the change page with an AI summary (English/German), the rollout dates and the full Microsoft text.
Microsoft Outlook: Update to default blocked file types in OwaMailboxPolicy
Two file extensions automatically added to email blocking lists
Zwei Dateitypen werden standardmäßig in OwaMailboxPolicy geblockt
Microsoft Defender for Office 365: Changes to Unified RBAC permission mapping for Microsoft Entra Security Operator role
Operator permissions for email security policies changed
Security Operator-Berechtigung für Defender-Email-Schutzrichtlinien geändert
(Updated) Microsoft Defender for Office 365: New email submissions data in Advanced Hunting
Two new hunting tables for email submission analytics
Zwei neue Hunting-Tabellen für E-Mail-Submission-Daten
Action Required: Upgrade ExchangeOnlineManagement PowerShell Module to Version 3.10.1 or Later
Upgrade ExchangeOnlineManagement to v3.10.1 minimum
ExchangeOnlineManagement-Modul auf Version 3.10.1 aktualisieren
Microsoft Defender for Office 365: View approver details for remediation actions in Advanced Hunting
'ApproverUpn' column added to EmailPostDeliveryEvents
Neue Spalte 'ApproverUpn' in EmailPostDeliveryEvents
Microsoft Defender for Office 365: Remediation actions from the Teams message entity flyout
Remediation actions added to Teams message flyout
Neue Remediation-Aktionen direkt im Teams-Nachrichtenseitenflügel
Microsoft Defender for Office 365: New MessageContents table in Advanced Hunting for Microsoft Teams messages
Teams message data now accessible through Advanced Hunting with role-based controls
Advanced Hunting bietet jetzt Zugriff auf Teams-Nachrichtendaten mit Berechtigungssteuerung
(Updated) Microsoft Purview: Auto-expanding archive capacity increases to 3 TB for eligible mailboxes
Auto-expanding archive capacity increases to 3 TB for eligible mailboxes
Auto-expanding Archive-Kapazität steigt auf 3 TB bei berechtigten Mailboxes
(Updated) Enhanced security and access controls for Outlook attachments
Attachment security requires conditional access validation
Neue Sicherheitskonfiguration blockiert ungenehmigte Anhangvorgänge
(Updated) [Outlook Mobile] Purview Data Loss Prevention support for Calendar Events
Mobile calendar DLP protection now enabled
DLP-Schutz jetzt auch für Mobile-Kalenderereignisse
(Updated) [Outlook Mac] Purview Data Loss Prevention support for Calendar Events
DLP now enforced for Outlook Mac calendar items
Purview DLP für Kalenderereignisse in Outlook Mac
(Updated) [Outlook Mobile] Purview DLP Wait-on-Send Support
Mobile Outlook clients with DLP wait-on-send capability
Mobile Outlook-Clients mit DLP-Wait-on-Send-Funktionalität
(Updated) [Outlook Mac] Purview DLP Wait-on-Send Support
Email send delay added for DLP policy checks
Outlook Mac: DLP-Wartezeit bei E-Mail-Versand implementiert
(Updated) Microsoft Exchange Online: Review and configure EWSAllowedAppIDs before Exchange Web Services access changes
EWS access management rules are changing for retirement
EWSAllowedAppIDs-Behandlung wird für EWS-Ausstieg geändert
Microsoft Purview | Data Lifecycle Management - Graph API Support for archive mailboxes
Graph APIs replace EWS archive mailbox capabilities
Graph-APIs ersetzen EWS-Funktionalität für Archive-Mailbox-Management
Admin app retiring in Teams, Outlook and Microsoft365.com
Admin app being phased out of Microsoft 365
Admin-Anwendung wird aus Microsoft-365-Apps entfernt
Understanding the new 100 GB mailbox entitlement for Microsoft 365 Business suites
Business suite paths now support 100 GB primary mailbox
Business-Suiten-Pfade erhalten 100 GB primären Mailbox-Raum
(Updated) Updates to Tenant External Recipient Rate Limit (TERRL) Quotas for New, Trial, and Education Tenants
TERRL quota now varies by tenant type and age
TERRL-Kontingentberechnung unterscheidet jetzt nach Mandantentyp und -alter
Microsoft Exchange Online: Retirement of the Other features page in Exchange admin center
'Other Features' page removal from Exchange admin center
Entfernung der Other Features Seite im Exchange Admin Center
(Updated) Migrate Free/Busy, MailTips, and Calendar Sharing before EWS deprecation
EWS API phase-out forces Cross-Tenant Policy migration
EWS-API-Phasing-out erzwingt Cross-Tenant-Policy-Migration
MDO Encrypted email attachment protection
Attachment password protection triggers automatic quarantine
Automatische Quarantäne bei passwortgeschützten Anhängungen
(Updated) Microsoft Defender for Office 365: AIR Investigation Experience Improvements
AIR investigations: Manual refresh and simplified naming required
AIR-Untersuchungen: Manuelles Refresh und vereinfachte Namenskonvention
Introducing cross-tenant message recall in Exchange Online
Cross-tenant message recall requires explicit admin whitelisting
Cross-Tenant-Nachrichten-Rückruf erfordert explizite Whitelist-Konfiguration
(Updated) Microsoft Defender for Office 365: Prompt injection protection for email
Automated protection against prompt injection attacks in Office 365 mail
Automatischer Schutz vor Prompt-Injection-Angriffen in Office 365-E-Mails
Update Exchange Web Services (EWS) allow list configuration for calendar
Update EWS allow list for Teams calendar
EWS-Zulassungsliste für Teams-Kalender aktualisieren
(Updated) Exchange Online will prevent creation of duplicate Dynamic Distribution Groups
DDG duplication blocked on exact configuration match
DDG-Duplikate werden bei Identitätserkennung blockiert
Action Required: Update active Exchange Web Services Applications
EWS deactivation 2026 requires application migration or retirement
EWS-Deaktivierung 2026 erfordert Migration oder Beendigung aktiver Anwendungen
Action Required: Update active Exchange Web Services Applications
EWS disable date requires active application migration.
EWS-Blockierung 2026 erfordert Migration aktiver Anwendungen.
Action Required: Update active Exchange Web Services Applications
EWS shutdown October 2026 requires application migration
EWS-Blockierung 2026 erfordert Migration aktiver Anwendungen
Action Required: Update active Exchange Web Services Applications
EWS deprecation triggers mandatory application migration
EWS-Blockierung 2026 erfordert Anwendungsmigration
Action Required: Update active Exchange Web Services Applications
Active EWS applications must migrate before October 2026
EWS-Blockierung 2026 erfordert Migration aktiver Anwendungen
Action Required: Update active Exchange Web Services Applications
EWS applications will be blocked in 2026 and require migration
EWS-Anwendungen werden 2026 blockiert und müssen migriert werden
Action required: Retirement of EWS-based Personal Bookings controls (Microsoft Bookings)
EWS Personal Bookings management replaced with OWA Mailbox Policy.
EWS-basierte Personal Bookings-Steuerung wird durch OWA-Mailbox-Policy ersetzt.
(Updated) Reminder: Exchange Online moderation approvals – legacy voting buttons support ends September 30, 2026
Legacy voting buttons for message moderation deprecated, Actionable Messages required
Legacy-Voting-Buttons für Nachrichtenmoderation veraltet, Actionable Messages erforderlich
(Updated)Microsoft Defender for Office 365: Handling of promotional email - Action required before General availability
Promotional emails tagged 'Promotions' with behavioral routing
Promotions-Tag ersetzt Bulk-Logik mit automatisiertem Ordner
(Updated) Microsoft Defender for Office 365: Localized default mark and notify email template
Notifications match user language
Benachrichtigungen in Nutzersprache
Improved PDF preview in Outlook for iOS
iOS Outlook PDF preview enhanced with MIP support and controls
Outlook für iOS: Neue PDF-Vorschau mit MIP-Unterstützung und Steuerleiste
Outlook Actionable Messages onboarding portal refresh: new experience and updated URL
Actionable Messages portal refreshed with new experience and URL
Onboarding-Portal für Actionable Messages mit neuer URL und Oberfläche
Microsoft Teams: Voicemail transcription service migration and new languages
Teams voicemail shifts to Azure speech API, expanding language support
Teams Voicemail-Umstellung auf Azure LLM Speech mit 23 Sprachen
(Updated) New Outlook for Windows becomes available for GCC High and DoD
Government cloud Outlook update now available
Outlook-Update für Regierungsclouds jetzt verfügbar
Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items
ZAP automatically remediates deleted items
ZAP bereinigt automatisch Deleted Items
[Action Required] Update scripts using Get-MailDetailTransportRuleReport and Get-MailTrafficPolicyReport
Transport rule cmdlets require explicit EventType parameter
Transportregel-Cmdlets erfordern jetzt expliziten EventType-Parameter
Microsoft Outlook: External email tag now supported in Inbox Rules
Inbox Rules use 'External email tag' condition for message filtering
'External email tag' als Regelbedingung in Outlook Inbox Rules hinzugefügt
Action Required: Update active Exchange Web Services Applications
EWS block date 10/1/2026: Migration or disable required
EWS-Blockung 2026: Migration oder Deaktivierung erforderlich
Action Required: Update active Exchange Web Services Applications
EWS apps blocked 2026 – migration to Graph required
EWS-Anwendungen 2026 blockiert – Migration erforderlich
Action Required: Update active Exchange Web Services Applications
EWS applications must migrate before October 2026
EWS-Apps müssen vor Oktober 2026 migriert werden
Action Required: Update active Exchange Web Services Applications
EWS shutdown begins 2026 with tenant-specific apps
EWS-Blocking startet 2026 mit konkreten Anwendungen im Tenant
Action Required: Update active Exchange Web Services Applications
EWS shutdown October 2026 requires application migration
EWS-Blockierung 2026 erfordert Migration von aktiv genutzten Anwendungen
Action Required: Update active Exchange Web Services Applications
EWS applications deactivate October 2026 with impacted app IDs
EWS-Anwendungen werden 2026 deaktiviert mit betroffenen Application IDs