Microsoft Exchange Online: Dynamic distribution groups will populate membership faster on creation and modification [MC1294524]

Microsoft Exchange Online: Dynamic distribution groups will populate membership faster on creation and modification [MC1294524]

Message ID: MC1294524 (Updated) Updated April 29, 2026: We have updated the content. Thank you for your patience. [Introduction]We’re updating dynamic distribution groups (DDGs) in Exchange Online so group membership is available sooner after a group is created or its filter…
Microsoft Exchange Online: Dynamic distribution groups will populate membership faster on creation and modification [MC1294524]

Microsoft Exchange Online: Dynamic distribution groups will populate membership faster on creation and modification [MC1294524]

Message ID: MC1294524 [Introduction]We’re updating dynamic distribution groups (DDGs) in Exchange Online so group membership is available sooner after a group is created or its filter is changed. For DDGs whose filter returns 5,000 members or fewer, membership will be…
Exchange Online: Retirement of legacy TLS versions for POP and IMAP connections [MC1293480]

Exchange Online: Retirement of legacy TLS versions for POP and IMAP connections [MC1293480]

Message ID: MC1293480 [Introduction]We are retiring support for legacy Transport Layer Security (TLS) versions for POP3 and IMAP4 connections to Exchange Online. This change improves security and aligns with current industry standards. TLS 1.0 and TLS 1.1 are no longer…
(Updated) Microsoft Outlook: Summarize email with Copilot chat [MC1162289]

(Updated) Microsoft Outlook: Summarize email with Copilot chat [MC1162289]

Message ID: MC1162289 (Updated) Updated April 21, 2026: We have paused rollout of Web, Mac, and Desktop releases. Android and iOS will continue to rollout as planned.[Introduction]We're introducing a new way to quickly summarize emails and attachments using Copilot chat…
(Updated) Outlook Mobile: Follow a meeting option [MC1248393]

(Updated) Outlook Mobile: Follow a meeting option [MC1248393]

Message ID: MC1248393 (Updated) Updated April 14, 2026: We have updated the timeline. Thank you for your patience. [Introduction]We’re introducing a new Follow option for meetings in Outlook Mobile.  This feature helps users stay informed when they cannot attend by prompting…