Microsoft Office 365 articles, fixes and updates - Year 2021

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Office 365 that have been released in Year 2021. The list is daily updated.

• 4039267 Change your country or region in Microsoft Store Q4039267 KB4039267 November 8, 2021
• 3080005 Description of the Activity-Based Authentication Timeout for OWA in Office 365 Q3080005 KB3080005 September 8, 2021
• 4028512 How to share your Microsoft 365 Family subscription Q4028512 KB4028512 June 9, 2021
• 4058123 Security Settings for COM objects in Office Q4058123 KB4058123 March 23, 2021
• 4497197 How to prepare Windows and Office for the new Japanese era change Q4497197 KB4497197 March 1, 2021
• 4026644 Find your Office apps in Windows 10 Q4026644 KB4026644 February 26, 2021
• 2862843 How to enable global and advanced logging for Microsoft Outlook Q2862843 KB2862843 February 10, 2021
• 4498413 How to allow MAPI to load unregistered Provider DLLs Q4498413 KB4498413 February 4, 2021
• 2487954 How to specify the email message format that's used for external recipients to prevent Winmail.dat attachments Q2487954 KB2487954 January 27, 2021
• 3020073 Office 365 setup freezes: Office is installing in the background (%) Q3020073 KB3020073 January 26, 2021
• 2989605 Some Click-to-Run programs do not start after Office 2013 July Public Update is installed Q2989605 KB2989605 January 26, 2021
• 2530569 Troubleshoot single sign-on setup issues in Office 365, Intune, or Azure Q2530569 KB2530569 January 26, 2021
• 3181709 "The customer subscription ID ... is not authorized for creating route filters for Office 365" error when enabling route filters Q3181709 KB3181709 January 25, 2021
• 3142536 Office documents don’t recognize Image Color Management when printed Q3142536 KB3142536 January 25, 2021
• 3120908 "Activation failed" error when you try to set up Azure Multi-Factor Authentication Q3120908 KB3120908 January 25, 2021
• 3088463 Mainstream Support ends for Office Professional Plus 2010 for Office 365 subscribers Q3088463 KB3088463 January 25, 2021
• 2974686 Directory synchronization report contains an "incompatible object type" error in Office 365 or Exchange Online Protection Q2974686 KB2974686 January 25, 2021
• 2934107 Guided walkthroughs and wizards for Exchange, Lync, SharePoint, and Office 365 Q2934107 KB2934107 January 25, 2021
• 2926328 Users in an Exchange Online Protection environment receive NDRs when they send mail to a recipient environment that uses UCEPROTECT for mail security Q2926328 KB2926328 January 25, 2021
• 2916650 Lync displays duplicate contacts, contacts contain incorrect information, or you can’t remove contacts Q2916650 KB2916650 January 25, 2021
• 2861178 "We encountered a problem and couldn’t complete the task" error message in Office Mobile on iPhone or Office Mobile on Android Q2861178 KB2861178 January 25, 2021
• 2836370 Email addresses aren't assigned correctly to new Office 365 mailboxes that you create in the Exchange Admin Center Q2836370 KB2836370 January 25, 2021
• 2834968 "We did not receive the expected response" error message when you try to sign in by using Azure Multi-Factor Authentication Q2834968 KB2834968 January 25, 2021
• 2834966 "Account verification system is having trouble" error message when you try to sign in by using a work or school account Q2834966 KB2834966 January 25, 2021
• 2834965 "We didn't receive a response" error message when you try to sign in by using Azure Multi-Factor Authentication Q2834965 KB2834965 January 25, 2021
• 2829319 Transport and mailbox rules in Exchange Online or in on-premises Exchange Server don't work as expected Q2829319 KB2829319 January 25, 2021
• 2814847 Rapid growth in transaction logs, CPU use, and memory consumption in Exchange Server 2010 when a user syncs a mailbox by using an iOS 6.1 or 6.1.1-based device Q2814847 KB2814847 January 25, 2021
• 2812881 Error message when you try to verify a domain in Office 365 Q2812881 KB2812881 January 25, 2021
• 2810080 Error 0xC004C032 when you install trial versions of Microsoft Office on multiple computers Q2810080 KB2810080 January 25, 2021
• 2809873 Available KB - Office 2013 set up error associated with "keep me signed in" Q2809873 KB2809873 January 25, 2021
• 2792924 Office 365 admin can't access the Exchange Control Panel of an Exchange Online user Q2792924 KB2792924 January 25, 2021
• 2791863 How to use Outlook Web App to remotely wipe an ActiveSync device in Office 365 Q2791863 KB2791863 January 25, 2021
• 2776497 The Office 365 DNS Diagnostic and DNS configuration Q2776497 KB2776497 January 25, 2021
• 2758215 On-premises users can't consistently view free/busy information for Office 365 users in a hybrid deployment Q2758215 KB2758215 January 25, 2021
• 2748176 A mobile device intermittently can't connect to Exchange Online Q2748176 KB2748176 January 25, 2021
• 2745710 A user can't access a mailbox by using Outlook after a remote mailbox move from an on-premises Exchange Server environment to Office 365 Q2745710 KB2745710 January 25, 2021
• 2741233 You see validation errors for users in the Office 365 portal or in the Azure Active Directory Module for Windows PowerShell Q2741233 KB2741233 January 25, 2021
• 2730143 The Outlook, Calendar, or People links are unavailable in the Office 365 portal for a new user Q2730143 KB2730143 January 25, 2021
• 2723127 Error message when you try to use the New-MoveRequest cmdlet to move a mailbox from Exchange Online in Office 365 to the on-premises environment in a hybrid deployment: "Operation has timed out" Q2723127 KB2723127 January 25, 2021
• 2718817 Time zone settings are incorrect or missing for multiple mailboxes in Office 365 Q2718817 KB2718817 January 25, 2021
• 2710606 Error when you use the Remote Connectivity Analyzer tool to test Outlook Anywhere in an Office 365 environment: "Mutual Authentication could not be established" Q2710606 KB2710606 January 25, 2021
• 2696491 "Cannot connect to the Rights Management Services Server" error message when you use Outlook for Mac 2011 to open an IRM-protected email message Q2696491 KB2696491 January 25, 2021
• 2679269 A user who has Send As permission can't send email messages as another user account in Outlook in Office 365 Q2679269 KB2679269 January 25, 2021
• 2655142 Outlook Junk Email settings ignored after you move a mailbox to Exchange Server 2010 Q2655142 KB2655142 January 25, 2021
• 2652021 The Office 365 Integration Module for SBS 2011 Essentials does not work as expected Q2652021 KB2652021 January 25, 2021
• 2646858 You don't get an email message or text message when you reset your admin password for Office 365, Azure, or Intune Q2646858 KB2646858 January 25, 2021
• 2641663 How to use SMTP matching to match on-premises user accounts to Office 365 user accounts for directory synchronization Q2641663 KB2641663 January 25, 2021
• 2638466 Fonts appear blurry in my apps Q2638466 KB2638466 January 25, 2021
• 2635238 "Setting up..." messages in the Microsoft 365 admin center Q2635238 KB2635238 January 25, 2021
• 2563324 Current issues with Microsoft Exchange ActiveSync and third-party devices Q2563324 KB2563324 January 25, 2021
• 2555008 How to troubleshoot free/busy issues in a hybrid deployment of on-premises Exchange Server and Exchange Online in Office 365 Q2555008 KB2555008 January 25, 2021
• 2531068 "Lync cannot verify that the server is trusted for your sign-in address." message when you sign in to Lync 2010 by authenticating to Skype for Business Online Q2531068 KB2531068 January 25, 2021
• 2530713 Signing in to Office 365, Azure, or Intune by using single sign-on doesn't work from some devices Q2530713 KB2530713 January 25, 2021
• 2515404 Troubleshoot domain verification issues in Office 365 Q2515404 KB2515404 January 25, 2021
• 2490230 How to set Exchange Online mailbox sizes and limits in the Office 365 environment Q2490230 KB2490230 January 25, 2021
• 2466333 Federated users can't connect to an Exchange Online mailbox Q2466333 KB2466333 January 25, 2021
• 2459968 Outlook 2011 for Mac doesn't automatically set up your email server settings for Exchange Online in Office 365 Q2459968 KB2459968 January 25, 2021
• 2441551 Outlook performance is slow in the Office 365 environment Q2441551 KB2441551 January 25, 2021
• 2437121 Troubleshooting guide for Internet Explorer when you access Microsoft 365, Azure, or Intune Q2437121 KB2437121 January 25, 2021
• 2427193 A mobile device can't connect to Exchange Online by using Exchange ActiveSync Q2427193 KB2427193 January 25, 2021
• 2392130 Troubleshoot user name issues that occur for federated users when they sign in to Office 365, Azure, or Intune Q2392130 KB2392130 January 25, 2021
• 2293282 Calendar on mobile device isn't synced to the calendar in an Exchange Online mailbox when you use Exchange ActiveSync Q2293282 KB2293282 January 25, 2021
• 257757 Considerations for server-side Automation of Office Q257757 KB257757 January 25, 2021
• 4557055 FAQ for VBA solutions affected by April 2020 Office security updates Q4557055 KB4557055 January 20, 2021
• 4537133 "We had trouble getting the featured templates and can't show them right now" error in Office 365 and Pro Plus 2016 Q4537133 KB4537133 January 20, 2021
• 4535295 Errors downloading Office 365 client updates through Configuration Manager starting December 10, 2019 Q4535295 KB4535295 January 16, 2021
• 4532996 "80070057" error and Office 365 version 1910 updates don't download or apply through Configuration Manager Q4532996 KB4532996 January 16, 2021
• 4516672 Outlook shows “Disconnected” after you enable modern authentication in Office 365 Q4516672 KB4516672 January 14, 2021
• 828550 You receive run-time error 429 when you automate Office applications Q828550 KB828550 January 7, 2021