Outlook: Improved handling of disallowed and failed email reactions [MC1261593]

Outlook: Improved handling of disallowed and failed email reactions [MC1261593]

Message ID: MC1261593 [Introduction] We’re improving how Outlook respects the x‑ms‑reactions: disallow header in Classic Outlook for Windows. This update ensures that when reactions are disallowed, the Reactions button is correctly disabled and any failed reaction attempts are fully reverted.…
(Updated) Retirement of -Credential parameter when connecting to Exchange Online PowerShell [MC1248389]

(Updated) Retirement of -Credential parameter when connecting to Exchange Online PowerShell [MC1248389]

Message ID: MC1248389 (Updated) [Introduction] Microsoft is retiring the -Credential parameter used when connecting to Exchange Online PowerShell. Starting with module versions released in July 2026 and later, the -Credential parameter will be removed from both Connect-ExchangeOnline and Connect-IppsSession cmdlets. Organizations…
Outlook Mobile: New external image handling option for safe senders [MC1260700]

Outlook Mobile: New external image handling option for safe senders [MC1260700]

Message ID: MC1260700 Introduction To address customer feedback and align Outlook Mobile with other Outlook endpoints, we’re updating how Outlook for iOS and Android handles external images in email messages. This update introduces a new “Load images for safe senders”…
Offline attachments policy for the new Outlook for Windows [MC1259820]

Offline attachments policy for the new Outlook for Windows [MC1259820]

Message ID: MC1259820 [Introduction] We are introducing a new OWAMailboxPolicy setting that allows administrators to control whether file attachments are available when users work offline in the new Outlook for Windows. This change adds a tenant-level configuration option for managing…
(Updated) Outlook: Delimiter setting admin policy [MC1239176]

(Updated) Outlook: Delimiter setting admin policy [MC1239176]

Message ID: MC1239176 (Updated) Updated March 19, 2026: We have updated the content. Thank you for your patience. [Introduction]We’re adding a new Exchange Online admin policy that gives admins more control over the default Mail Compose and Reply setting that determines…
(Updated) Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android [MC1247891]

(Updated) Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android [MC1247891]

Message ID: MC1247891 (Updated) Updated March 17, 2026: We have updated the timeline. Thank you for your patience. [Introduction]Outlook for iOS and Android is adding support for recommended and automatically applied sensitivity labels when you compose an email on your mobile…