Microsoft Office 365 articles, fixes and updates - letter M

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Office 365 starts with letter M that have been released. The list is daily updated.

• 3088463 Mainstream Support ends for Office Professional Plus 2010 for Office 365 subscribers Q3088463 KB3088463 January 25, 2021
• 2824766 MailNickName or Alias attribute in Exchange Online doesn't match what is set in Exchange on-premises Q2824766 KB2824766 December 17, 2020
• 4465277 Microsoft Teams is now the primary client for meetings and calling in Office 365 Q4465277 KB4465277 October 23, 2020
• 2508722 Mail-enabled groups that have an email address aren't synchronized to Office 365 Q2508722 KB2508722 June 30, 2020
• 2888788 Mail flow to Exchange Online stops, and event ID 2004 is logged on the hybrid transport server Q2888788 KB2888788 May 31, 2020
• 2879262 Missing certificate on the last page of the Hybrid Configuration Wizard Q2879262 KB2879262 May 31, 2020
• 2871040 Microsoft Exchange Online Message Trace Diagnostic Q2871040 KB2871040 May 31, 2020
• 2845956 "Mailboxes listed in the following table can't be migrated" error when you perform a staged Exchange migration to migrate on-premises mailboxes to Exchange Online Q2845956 KB2845956 May 31, 2020
• 17624 Microsoft Lifecycle FAQ—Office, Office 365, and Microsoft 365 Q17624 KB17624 April 30, 2020
• 2901386 Mail access issues in a hybrid Exchange deployment with cloud-based archive Q2901386 KB2901386 November 19, 2019
• 2293029 Mobile device doesn't connect to Exchange Online through Exchange ActiveSync after the user's mailbox is migrated to Exchange Online Q2293029 KB2293029 November 19, 2019
• 3073644 "Microsoft Online Services Sign-in Assistant service installation returned FAIL" error when you try to install the Azure Active Directory Sync tool Q3073644 KB3073644 June 3, 2019
• 4073210 Microsoft 365 Identity & Access Management Deployment Consultation Q4073210 KB4073210 May 20, 2019
• 4073209 Microsoft 365 Identity & Access Management Presales Consultation Q4073209 KB4073209 May 20, 2019
• 2933701 "Message store has reached its maximum size" error when an Office 365 user tries to delete an item in Outlook or Outlook on the Web Q2933701 KB2933701 May 14, 2019
• 2910566 Microsoft Office 365 for Nonprofits and NGOs Q2910566 KB2910566 January 25, 2019
• 2579682 "Microsoft Online Services Sign In Assistant Error" when you try to activate Office Professional Plus Q2579682 KB2579682 August 20, 2018
• 4339711 Missing eDiscovery "Teams" data in the Security & Compliance Center in O365 Q4339711 KB4339711 July 3, 2018
• 2843677 Messages sent from a shared mailbox aren't saved to the Sent Items folder of the shared mailbox in Outlook Q2843677 KB2843677 June 20, 2018
• 2926946 Microsoft Online Services Directory Synchronization tool stops syncing objects and triggers event ID 0 Q2926946 KB2926946 December 28, 2016
• 2709216 Meeting requests that are sent to resource mailboxes are not always forwarded automatically to delegates in Outlook in Office 365 Q2709216 KB2709216 December 28, 2016
• 2729553 Meeting invitations from people outside your organization in Office 365 are displayed as email messages on a BlackBerry smartphone Q2729553 KB2729553 December 16, 2016
• 2714467 Messages that are older than 30 days are missing from the Deleted Items folder of an Exchange Online user's mailbox Q2714467 KB2714467 December 16, 2016
• 2627729 Messages aren't automatically moved to a user's archive mailbox after you create a retention policy in Exchange Online for Office 365 Q2627729 KB2627729 December 16, 2016
• 3073862 Microsoft Office 365 Support and Recovery Assistant (pre-release build for customer feedback) Q3073862 KB3073862 July 7, 2015
• 3073672 Microsoft Office 365 Support and Recovery Assistant (pre-release build for customer feedback) Q3073672 KB3073672 July 7, 2015
• 3073671 Microsoft Office 365 Support and Recovery Assistant (pre-release build for customer feedback) Q3073671 KB3073671 July 7, 2015
• 3073666 Microsoft Office 365 Support and Recovery Assistant (pre-release build for customer feedback) Q3073666 KB3073666 July 7, 2015
• 3063137 Microsoft Office 365 Support and Recovery Assistant (pre-release build for customer feedback) Q3063137 KB3063137 July 7, 2015
• 3050682 Microsoft Office 365 Support and Recovery Assistant (pre-release build for customer feedback) Q3050682 KB3050682 July 7, 2015
• 3043779 Microsoft Office 365 Support and Recovery Assistant (pre-release build for customer feedback) Q3043779 KB3043779 July 7, 2015
• 2768774 Meeting in attendee’s Calendar loses track of the meeting organizer Q2768774 KB2768774 July 15, 2014
• 2707348 "Metadata Exchange (MEX) document received from AD FS contains an unknown WS-Trust version" error after you run the MOSDAL Support Toolkit Q2707348 KB2707348 July 9, 2014
• 2707331 "Microsoftonline.com could not be accessed" error after you run the MOSDAL Support Toolkit Q2707331 KB2707331 July 9, 2014
• 2707329 "Metadata Exchange (MEX) address for AD FS could not be accessed" error after you run the MOSDAL Support Toolkit Q2707329 KB2707329 July 9, 2014
• 2296357 Mail-enabled security groups and distribution groups aren't displayed in the Office 365 portal in Office 365 pre-upgrade Q2296357 KB2296357 June 24, 2014
• 2836021 "Mapped network drive could not be created" error when you try to map to SharePoint Online Q2836021 KB2836021 June 26, 2013
• 2804479 My Site Newsfeeds doesn't display the most recent user activities in SharePoint Online Q2804479 KB2804479 February 27, 2013
• 2709665 Mobile devices are in the upgrade access state after users are transitioned from BPOS-S to Office 365 Q2709665 KB2709665 June 22, 2012
• 2570607 Meeting invitations that are sent from users who are external to Office 365 appear as email messages on a BlackBerry Smartphone Q2570607 KB2570607 June 22, 2012
• 2456592 Microsoft Online Services compatibility with single-label domains, with disjoint namespaces, and with discontiguous namespaces Q2456592 KB2456592 April 2, 2012
• 2461858 Microsoft SharePoint regional settings cannot be changed in the SharePoint Online Administration Center Q2461858 KB2461858 March 14, 2011
• 2443007 Microsoft Online Services Connector updates are not successfully installed on the computer Q2443007 KB2443007 January 10, 2011