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Exchange Server 2016 articles, fixes and updates - Year 2021
Daily Updated!
chronological list: 2021 | 2020/12 10 5 4 | 2019 | 2018 | 2017 | 2016 | 2015
alphabetical list: A B C D E F G H I L M N O P R S T U W X Y
This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Exchange Server 2016 that have been released in Year 2021. The list is daily updated.
- 5008720 Outlook and mobile clients don’t authenticate after November 2021 fixes for Windows installed Q5008720 KB5008720 November 15, 2021
- 5007409 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: November 9, 2021 (KB5007409) Q5007409 KB5007409 November 10, 2021
- 5007012 Description of the security update for Microsoft Exchange Server 2019 and 2016: October 12, 2021 (KB5007012) Q5007012 KB5007012 October 12, 2021
- 5007043 Exchange Server SU updates Add/Remove Programs incorrectly (KB5007043) Q5007043 KB5007043 September 28, 2021
- 5007042 Error window appears when you view features in OWA Virtual Directory (KB5007042) Q5007042 KB5007042 September 28, 2021
- 5006997 Export-AutoDiscoverConfig exposes admin password and does not work against domain controllers that require signing (KB5006997) Q5006997 KB5006997 September 28, 2021
- 5006996 Korean messages in OWA display "From" as "Start date" after you filter the list in Exchange Server 2019 and 2016 Q5006996 KB5006996 September 28, 2021
- 5006995 Korean email messages display some recipients incorrectly in Exchange Server 2019 and 2016 (KB5006995) Q5006995 KB5006995 September 28, 2021
- 5006994 BCC values not retained in Sent Items in a shared mailbox in Exchange Server 2019 and 2016 (KB5006994) Q5006994 KB5006994 September 28, 2021
- 5006993 Can't log on to OWA in Chrome if SSL is offloaded in Exchange Server 2019 and 2016 (KB5006993) Q5006993 KB5006993 September 28, 2021
- 5006992 No room lists found when trying to add a room in OWA in Exchange Server 2019 or 2016 (KB5006992) Q5006992 KB5006992 September 28, 2021
- 5006989 Accepted domains with wildcards for subdomains are not honored when Edge maps AddressSpaces (KB5006989) Q5006989 KB5006989 September 28, 2021
- 5006988 Export of .pst file is unexpectedly triggered again in Exchange Server 2019 and 2016 (KB5006988) Q5006988 KB5006988 September 28, 2021
- 5006986 Opening an Outlook message from the desktop removes line spacing (KB5006986) Q5006986 KB5006986 September 28, 2021
- 5006984 PrepareAD fails if Computers container or RODCs are renamed or moved in Exchange Server 2019 and 2016 (KB5006984) Q5006984 KB5006984 September 28, 2021
- 5006983 Exchange Server 2019 and 2016 certificates created during setup use SHA-1 hash (KB5006983) Q5006983 KB5006983 September 28, 2021
- 5006982 On-premises Exchange queues back up because of incorrect default value (KB5006982) Q5006982 KB5006982 September 28, 2021
- 5006980 Bad signature error using PerfView in Exchange Server 2019 and 2016 (KB5006980) Q5006980 KB5006980 September 28, 2021
- 5003611 Cumulative Update 21 for Exchange Server 2016 (KB5003611) Q5003611 KB5003611 September 2, 2021
- 5004779 Description of the security update for Microsoft Exchange Server 2016: July 13, 2021 (KB5004779) Q5004779 KB5004779 August 31, 2021
- 5005738 Custom attribute changes through EAC are not saved in Exchange 2019 and 2016 Q5005738 KB5005738 August 11, 2021
- 5001874 "500 Unexpected Error" when trying to create a user mailbox in Exchange admin center Q5001874 KB5001874 July 30, 2021
- 5005341 Cannot log in to OWA or ECP after July 2021 SU for Exchange Server 2019, 2016, and 2013 (KB 5005341) Q5005341 KB5005341 July 28, 2021
- 5005319 “Object reference not set to an instance of an object” error and Setup fails in Exchange 2019 CU10 and 2016 CU21 Q5005319 KB5005319 July 20, 2021
- 5004629 No version updating after you install Exchange Server 2016 (KB5004629) Q5004629 KB5004629 June 29, 2021
- 5004623 Elevation of privilege vulnerability in Active Directory because of "msExchStorageGroup" schema class (KB5004623) Q5004623 KB5004623 June 29, 2021
- 5004619 Mailbox creation through ECP fails after installing Exchange Server 2019 CU9 or 2016 CU20 (KB5004619) Q5004619 KB5004619 June 29, 2021
- 5004618 Start-ManagedFolderAssistant causes a "4999" crash in ELCAssistant.InvokeInternalAssistant with System.NullReferenceException Q5004618 KB5004618 June 29, 2021
- 5004616 Changing the email address in EAC doesn't work in modern browsers (KB5004616) Q5004616 KB5004616 June 29, 2021
- 5004615 "InvalidOperationException" and Store Worker process crashes during mailbox move (KB5004615) Q5004615 KB5004615 June 29, 2021
- 5004614 Korean text is garbled in calendar invitation to a user with a Chinese display name (KB5004614) Q5004614 KB5004614 June 29, 2021
- 5004613 OutOfMemory exception when moving a public folder that has a large ICS sync state (KB5004613) Q5004613 KB5004613 June 29, 2021
- 5004612 Message body not displayed in OWA if the message was added in Outlook to a new mailbox (KB5004612) Q5004612 KB5004612 June 29, 2021
- 5003623 "(400) Bad Request" error during Autodiscover for per-user free/busy in a trusted cross-forest topology Q5003623 KB5003623 May 12, 2021
- 5003435 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: May 11, 2021 (KB5003435) Q5003435 KB5003435 May 12, 2021
- 4569834 Admin search with date string yields unexpected results or no result Q4569834 KB4569834 April 16, 2021
- 4564074 Autodiscover, OWA, EWS won’t work in an environment where Microsoft Exchange Server 2010 and Exchange Server 2016 coexist Q4564074 KB4564074 April 5, 2021
- 4602570 Cumulative Update 9 for Exchange Server 2019 Q4602570 KB4602570 April 2, 2021
- 4602569 Cumulative Update 20 for Exchange Server 2016 Q4602569 KB4602569 April 2, 2021
- 3124557 MS16-010: Security update in Microsoft Exchange Server to address spoofing: January 12, 2016 Q3124557 KB3124557 April 2, 2021
- 5001195 UPN specified when creating mailbox is overwritten automatically causing login failures in Exchange Server 2019 and 2016 Q5001195 KB5001195 March 17, 2021
- 5001190 MonitoringGroup can't control the placement of CAS monitoring mailboxes in Exchange Server 2019 and 2016 Q5001190 KB5001190 March 17, 2021
- 5000871 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: March 2, 2021 (KB5000871) Q5000871 KB5000871 March 17, 2021
- 5001194 RFC certificate timestamp validation in Exchange Server 2019 and 2016 Q5001194 KB5001194 March 16, 2021
- 5001193 New health mailboxes for databases are created every time Exchange health manager service is restarted Q5001193 KB5001193 March 16, 2021
- 5001192 Microsoft Teams fails to show calendar because Autodiscover v2 isn't site-aware in Exchange Server 2019 and 2016 Q5001192 KB5001192 March 16, 2021
- 5001189 Mailbox Audit log searches and Outlook both tied to MaxHitsForFullTextIndexSearches in Exchange Server 2019 and 2016 Q5001189 KB5001189 March 16, 2021
- 5001188 Incorrect MRM properties stamped on mail item delivery when sending to multiple mailboxes on the same database in Exchange Server 2019 and 2016 Q5001188 KB5001188 March 16, 2021
- 5001186 Encoding of special characters isn't preserved which causes missing text in Outlook in Exchange Server 2019 and 2016 Q5001186 KB5001186 March 16, 2021
- 5001185 EAC has no option to select an archive domain for cloud-based archive in Exchange Server 2019 and 2016 Q5001185 KB5001185 March 16, 2021
- 5001184 EAC has no option to select the correct tenant for an Office 365 mailbox in Exchange Server 2019 and 2016 Q5001184 KB5001184 March 16, 2021
- 5001183 Attachment is treated as bad zip file on Edge Transport server in Exchange Server 2019 and 2016 Q5001183 KB5001183 March 16, 2021
- 4583558 PDF preview function in OWA leads to download action unexpectedly Q4583558 KB4583558 March 16, 2021
- 4602269 Description of the security update for Microsoft Exchange Server 2019 and 2016: February 9, 2021 (KB4602269) Q4602269 KB4602269 February 9, 2021
- 4583653 September 2020 update to Exchange Hybrid Configuration Wizard Q4583653 KB4583653 January 26, 2021
- 4035145 Cumulative Update 8 for Exchange Server 2016 Q4035145 KB4035145 January 26, 2021
- 4013606 Search fails on Exchange Server 2016 and Exchange Server 2013 Q4013606 KB4013606 January 26, 2021
- 3212580 Changing virtual directory URLs by using EAC removes all forms of authentication in Exchange Server 2016 Q3212580 KB3212580 January 26, 2021
- 3209036 FIX: "Logs will not be generated until the problem is corrected" error in an Exchange Server 2016 environment Q3209036 KB3209036 January 26, 2021
- 3208840 Messages for the health mailboxes are stuck in queue on Exchange Server 2016 Q3208840 KB3208840 January 26, 2021
- 3202998 FIX: MSExchangeOWAAppPool application pool consumes memory when it recycles and is marked as unresponsive by Health Manager Q3202998 KB3202998 January 26, 2021
- 3202691 Public folders indexing doesn't work correctly after you apply latest cumulative updates for Exchange Server Q3202691 KB3202691 January 26, 2021
- 3201358 Set-Mailbox and New-Mailbox cmdlets prevent the use of the -Office parameter in Exchange Server 2016 Q3201358 KB3201358 January 26, 2021
- 3201350 IMAP "unread" read notifications aren’t suppressed in Exchange Server 2016 Q3201350 KB3201350 January 26, 2021
- 3199353 You can't select the receive connector role when you create a new receive connector in Exchange Server 2016 Q3199353 KB3199353 January 26, 2021
- 3196521 “Operation failed. Cannot query rows in a table” error during FindItems operation in EWS in Exchange Server 2016 Q3196521 KB3196521 January 26, 2021
- 3191075 You can't install Cumulative Update 2 for Exchange Server 2016 on a Russian version operating system Q3191075 KB3191075 January 26, 2021
- 3190887 Upgrading Exchange Server causes the server to go offline unexpectedly Q3190887 KB3190887 January 26, 2021
- 3186620 Mailbox search from Exchange Management Shell fails with invalid sort value in Exchange Server 2016 Q3186620 KB3186620 January 26, 2021
- 3177106 Cumulative Update 4 for Exchange Server 2016 Q3177106 KB3177106 January 26, 2021
- 3176540 OWA error reporting responds with a HTTP error 500 in OwaSerializationException Q3176540 KB3176540 January 26, 2021
- 3176377 Links to access Exchange items in SharePoint eDiscovery search result fail with an HTTP error 500 in Exchange Server Q3176377 KB3176377 January 26, 2021
- 3175080 Cannot log on to OWA when FIPS is enabled in an Exchange Server 2016 environment Q3175080 KB3175080 January 26, 2021
- 3171162 You cannot search emails in Outlook or Outlook Web App in an Exchange Server 2016 Cumulative Update 1 environment Q3171162 KB3171162 January 26, 2021
- 3163039 Email message body is garbled when Simplified Chinese characters are included on BCC line in an Exchange Server environment Q3163039 KB3163039 January 26, 2021
- 3161916 Data loss may occur during public folder migration to Exchange 2013, Exchange 2016, or Exchange Online Q3161916 KB3161916 January 26, 2021
- 3154387 The DFS health set is listed as "Unhealthy" in an Exchange Server 2016 environment Q3154387 KB3154387 January 26, 2021
- 3152589 Cumulative Update 3 for Exchange Server 2016 Q3152589 KB3152589 January 26, 2021
- 3139730 Edge Transport service crashes when you view the properties of a poison message in Exchange Server 2016 Q3139730 KB3139730 January 26, 2021
- 3135742 Cumulative Update 2 for Exchange 2016 Q3135742 KB3135742 January 26, 2021
- 3135689 Custom SAP ODI URI is removed by ActiveSync from an email in Exchange Server Q3135689 KB3135689 January 26, 2021
- 3135688 Update preserves the web.config file for Outlook Web App when you apply a cumulative update in Exchange Server 2016 Q3135688 KB3135688 January 26, 2021
- 3135601 Cyrillic characters are displayed as question marks in an Exchange Server 2016 environment Q3135601 KB3135601 January 26, 2021
- 3126723 Retention policy doesn't work on the In-Place Archive mailbox in Exchange Server Q3126723 KB3126723 January 26, 2021
- 3124242 Mailbox quota isn't validated during Exchange Server 2013 or 2016 migration Q3124242 KB3124242 January 26, 2021
- 3115610 Test-ExchangeSearch or Test-ExchangeSearch -MailboxDatabase doesn't work in Exchange Server 2016 and Exchange Server 2013 CU6 Q3115610 KB3115610 January 26, 2021
- 3064393 "Bad Command. 12" error occurs and IMAP CAPABILITY commands are not offered in an Exchange Server 2013 environment Q3064393 KB3064393 January 26, 2021
- 2990117 Outlook Anywhere users prompted for credentials when they try to connect to Exchange Server 2013 or Exchange Server 2016 Q2990117 KB2990117 January 26, 2021
- 2971270 You get a blank page after logging in EAC or OWA in Exchange 2013 or Exchange 2016 Q2971270 KB2971270 January 26, 2021
- 2882961 Using security groups to set calendar permissions does not work in an Exchange resource forest Q2882961 KB2882961 January 26, 2021
- 4340731 Description of the security update for Microsoft Exchange Server 2013 and 2016: August 14, 2018 Q4340731 KB4340731 January 25, 2021
- 4092041 Description of the security update for Microsoft Exchange Server 2013 and 2016: May 8, 2018 Q4092041 KB4092041 January 25, 2021
- 4073392 Description of the security update for Microsoft Exchange: March 13, 2018 Q4073392 KB4073392 January 25, 2021
- 4013242 MS17-015: Security Update for Microsoft Exchange Server: March 14, 2017 Q4013242 KB4013242 January 25, 2021
- 4012178 MS17-015: Description of the security update for Exchange Server 2016 and Exchange Server 2013: March 14, 2017 Q4012178 KB4012178 January 25, 2021
- 3200403 Unable to access public folders moved to a different mailbox Q3200403 KB3200403 January 25, 2021
- 3185883 MS16-108: Security update for Exchange Server: September 13, 2016 Q3185883 KB3185883 January 25, 2021
- 3184736 MS16-108: Description of the security update for Exchange Server 2016 and 2013: September 13, 2016 Q3184736 KB3184736 January 25, 2021
- 3160339 MS16-079: Security update for Microsoft Exchange: June 14, 2016 Q3160339 KB3160339 January 25, 2021
- 3150501 MS16-079: Description of the security update for Exchange Server 2016 and Exchange Server 2013: June 14, 2016 Q3150501 KB3150501 January 25, 2021
- 3145373 "The option you chose isn't available" or "Access to Options hasn't been turned on" in mail settings in Outlook on the web Q3145373 KB3145373 January 25, 2021
- 3140296 Email message body is garbled when the Russian version of Outlook is used in Exchange Server Q3140296 KB3140296 January 25, 2021
- 3131416 "0x80070005-0x0004dc-0x000524" error when a user sends updates to Calendar items that were created before Exchange Online migration Q3131416 KB3131416 January 25, 2021
- 3035230 Owner cannot create modern public folders by using Outlook in Exchange Server 2013 or Exchange Server 2016 Q3035230 KB3035230 January 25, 2021
- 3012590 Instance of calendar appointment is missing or duplicated on ActiveSync client Q3012590 KB3012590 January 25, 2021
- 2992093 Default folder is missing in Outlook and Outlook on the web Q2992093 KB2992093 January 25, 2021
- 2934750 Mailbox move to Exchange Server causes Outlook connectivity issue Q2934750 KB2934750 January 25, 2021
- 2934107 Guided walkthroughs and wizards for Exchange, Lync, SharePoint, and Office 365 Q2934107 KB2934107 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
- 2800556 Large transaction logs are generated when you move mailboxes in Exchange Server 2013 or Exchange Server 2016 Administration Center Q2800556 KB2800556 January 25, 2021
- 2796032 Outlook Junk E-mail protection level changes unexpectedly to Low Q2796032 KB2796032 January 25, 2021
- 2755012 [SDP 3][d04d6306-88c6-440a-abba-ec841fc3ea49] Microsoft Exchange Server Diagnostic Q2755012 KB2755012 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
- 954199 Description of the policy for how e-mail is filtered by the junk e-mail filters in Outlook or in Exchange Server Q954199 KB954199 January 25, 2021
- 4588884 Cumulative Update 19 for Exchange Server 2016 Q4588884 KB4588884 January 15, 2021
- 4588297 Attachments can’t be downloaded or previewed from Outlook Web App Q4588297 KB4588297 January 15, 2021
- 4583545 Make DomainName in Authserver a multivalued parameter in Exchange Server 2019 and 2016 Q4583545 KB4583545 January 15, 2021
- 4583539 Non-breaking space is visible in message body in Outlook in Exchange Server 2019 and 2016 Q4583539 KB4583539 January 15, 2021
- 4583538 Microsoft Teams REST calls exceed the default value of maxQueryStringLength in Exchange Server 2019 and 2016 Q4583538 KB4583538 January 15, 2021
- 4583537 Update Korean word breaker in Exchange Server 2019 and 2016 Q4583537 KB4583537 January 15, 2021
- 4583536 Set-MailboxFolderPermission is included in Mail Recipient Creation in Exchange Server 2019 and 2016 Q4583536 KB4583536 January 15, 2021
- 4583535 New-Moverequest, Resume-Moverequest, and Remove-Moverequest not logged in Audit logs in Exchange Server 2019 and 2016 Q4583535 KB4583535 January 15, 2021
- 4583534 Event ID 65535 System.Runtime.Serialization errors in Application log in Exchange Server 2019 or 2016 Q4583534 KB4583534 January 15, 2021
- 4583533 Exchange Server 2019 or 2016 installation fails with error "The user has insufficient access rights" Q4583533 KB4583533 January 15, 2021
- 4583532 ELC MRM archiving fails due to DomainName in AuthServer in Exchange Server 2019 and 2016 Q4583532 KB4583532 January 15, 2021
- 4583531 Design change about inline images will be forced to download but not open in a new tab of OWA in Exchange Server 2019 and 2016 Q4583531 KB4583531 January 15, 2021
- 4571788 Cumulative Update 18 for Exchange Server 2016 Q4571788 KB4571788 January 15, 2021
- 4559444 Conversion from HTML to RTF removes non-breaking space in Exchange Server 2019 and 2016 Q4559444 KB4559444 January 15, 2021
- 4556414 Cumulative Update 17 for Exchange Server 2016 Q4556414 KB4556414 January 15, 2021
- 4537678 Cumulative Update 16 for Exchange Server 2016 Q4537678 KB4537678 January 15, 2021
- 4488406 Cumulative Update 13 for Exchange Server 2016 Q4488406 KB4488406 January 15, 2021
- 4295081 A component used within Exchange requires a new Visual C++ prerequisite for Exchange Server 2016, 2013, and 2010 Q4295081 KB4295081 January 15, 2021
- 4088772 Wordbreaker uses English to index text formatted as English and as non-English in Exchange Server 2016 Q4088772 KB4088772 January 15, 2021
- 4073103 The Enable-Mailbox cmdlet doesn't block migrated users from provisioning in Exchange Server 2016 Q4073103 KB4073103 January 15, 2021
- 4055435 No MAPI network interface is found after you install Exchange Server 2016 CU7 Q4055435 KB4055435 January 15, 2021
- 3213916 "CommunicationErrorTransientException" error when you migrate mailboxes in Exchange Server 2016 Q3213916 KB3213916 January 15, 2021
- 3196954 Email items missing on a mobile device after synchronization with Exchange ActiveSync Q3196954 KB3196954 January 15, 2021
- 4593465 Description of the security update for Microsoft Exchange Server 2019 and 2016: December 8, 2020 Q4593465 KB4593465 January 14, 2021
- 4588741 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: November 10, 2020 Q4588741 KB4588741 January 14, 2021
- 4581424 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: October 13, 2020 Q4581424 KB4581424 January 14, 2021
- 4515832 Description of the security update for Microsoft Exchange Server 2019 and Exchange Server 2016: September 10, 2019 Q4515832 KB4515832 January 14, 2021
- 4503027 Description of the security update for Microsoft Exchange Server 2019 and 2016: June 11, 2019 Q4503027 KB4503027 January 14, 2021
- 4487563 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: April 9, 2019 Q4487563 KB4487563 January 14, 2021
- 4471392 Cumulative Update 12 for Exchange Server 2016 Q4471392 KB4471392 January 14, 2021
- 4471389 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: January 8, 2019 Q4471389 KB4471389 January 14, 2021
- 4459266 Description of the security update for Microsoft Exchange Server 2013 and 2016: October 9, 2018 Q4459266 KB4459266 January 14, 2021
- 4045655 Description of the security update for Microsoft Exchange: December 12, 2017 Q4045655 KB4045655 January 14, 2021
- 3121838 Resource mailboxes don't update when a user other than a meeting originator changes meeting in a shared mailbox Q3121838 KB3121838 January 14, 2021