Microsoft Defender for Office 365
Email and collaborationDefender For Office 365 Whats New
In brief
The documentation now states that automatic “Mark as and notify” emails using the default template are localized according to users’ Outlook language settings. Admin-configured custom templates are unaffected.
What Defender admins need to know
Users may receive default notifications in their preferred language. No administrator action is indicated.
Summaries are generated from the documentation change itself.
Documentation change
View on Microsoft LearnThe comparison below shows only the changed extract. Use the full-page view for complete context.
July 2026
Localized default Mark as and notify email templates: When automatic notifications use the default template, users receive notification emails in their preferred language based on their Outlook language settings. Custom notification templates configured by admins aren't affected. For more information, see Admin review for user reported messages.
Unified RBAC is the default permission model for new Defender for Office 365 Plan 2 organizations: Starting July 2026, new Microsoft Defender for Office 365 Plan 2 organizations use the Microsoft Defender unified role-based access control (Unified RBAC) model by default. For more information, see Configure Unified RBAC for Microsoft Defender for Office 365 and MC1246006.
Microsoft Defender for Office 365 Plan 1 included in Microsoft 365 E3: Microsoft 365 E3 now includes Microsoft Defender for Office 365 Plan 1. For more information about what's included in each plan, see Microsoft Defender for Office 365 Plan 1 vs. Plan 2 cheat sheet.
@@ -5,7 +5,7 @@ keywords: what's new in Microsoft Defender for Office 365, ga, generally availab author: chrisda ms.author: chrisda ms.localizationpriority: medium-ms.date: 07/10/2026+ms.date: 07/30/2026 ms.collection: - m365-security - tier1@@ -41,6 +41,8 @@ For more information on what's new with other Microsoft Defender security produc ## July 2026 +- **Localized default Mark as and notify email templates**: When automatic notifications use the default template, users receive notification emails in their preferred language based on their Outlook language settings. Custom notification templates configured by admins aren't affected. For more information, see [Admin review for user reported messages](submissions-admin-review-user-reported-messages.md#notify-users-from-within-the-portal).+ - **Unified RBAC is the default permission model for new Defender for Office 365 Plan 2 organizations**: Starting July 2026, new Microsoft Defender for Office 365 Plan 2 organizations use the Microsoft Defender unified role-based access control (Unified RBAC) model by default. For more information, see [Configure Unified RBAC for Microsoft Defender for Office 365](step-by-step-guides/configure-unified-rbac-defender-office-365.md) and [MC1246006](https://admin.microsoft.com/Adminportal/Home#/MessageCenter/:/messages/MC1246006). - **Microsoft Defender for Office 365 Plan 1 included in Microsoft 365 E3**: Microsoft 365 E3 now includes Microsoft Defender for Office 365 Plan 1. For more information about what's included in each plan, see [Microsoft Defender for Office 365 Plan 1 vs. Plan 2 cheat sheet](mdo-about.md#defender-for-office-365-plan-1-vs-plan-2-cheat-sheet).