Microsoft Exchange Online: Upcoming secure-by-default changes for Exchange APIs [MC1304287]

Microsoft Exchange Online: Upcoming secure-by-default changes for Exchange APIs [MC1304287]

Message ID: MC1304287 [Introduction]As part of the Microsoft Secure Future Initiative (SFI), and in alignment with the Secure by Default principle, we’re updating the Microsoft‑managed default user consent policy for Microsoft Graph. This change increases administrator control over third‑party application…
Default compose font: Administrators can allow users to change the default font in Outlook for iOS and Android [MC1303717]

Default compose font: Administrators can allow users to change the default font in Outlook for iOS and Android [MC1303717]

Message ID: MC1303717 [Introduction]To balance organizational branding with user flexibility, administrators will be able to control whether users can change the default compose font in Outlook for iOS and Android. When a default font name or size is set using…
Microsoft Entra: Upcoming changes to federatedTokenValidationPolicy default settings [MC1303719]

Microsoft Entra: Upcoming changes to federatedTokenValidationPolicy default settings [MC1303719]

Message ID: MC1303719 [Introduction]To strengthen security for federated authentication, Microsoft Entra will update the default behavior of federatedTokenValidationPolicy. This policy governs how Microsoft Entra validates federated authentication tokens and determines whether sign-ins are allowed when the internalDomainFederation does not match…
(Updated) New Feature: Account Manager in Outlook for Windows [MC1129718]

(Updated) New Feature: Account Manager in Outlook for Windows [MC1129718]

Message ID: MC1129718 (Updated) Updated May 7, 2026: We have updated the timeline. Thank you for your patience. We're introducing a new Account Manager experience in Outlook for Windows. This feature helps users better manage their Microsoft accounts by providing quick…
Outlook: Support for storing S/MIME certificates in contacts in new Outlook [MC1302908]

Outlook: Support for storing S/MIME certificates in contacts in new Outlook [MC1302908]

Message ID: MC1302908 [Introduction] The new Outlook for Windows now allows users to store S/MIME encryption certificates directly within Contacts. This capability enables users to save recipients’ public certificates and use them to send S/MIME encrypted emails, improving secure communication…