Exchange Server 2016 articles, fixes and updates - January 2021

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 January 2021. The list is daily updated.

• 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
• 4577438 Autodiscover v2 returns InternalURL not ExternalURLs in other site Q4577438 KB4577438 January 20, 2021
• 4577352 Description of the security update for Microsoft Exchange Server 2019 and 2016: September 8, 2020 Q4577352 KB4577352 January 20, 2021
• 4576651 Can't join Teams meetings from Surface Hub devices after installing Exchange Server 2019 CU5 or Exchange Server 2016 CU16 Q4576651 KB4576651 January 20, 2021
• 4576650 Can't add remote mailbox when setting email forwarding in Exchange Server 2019 or 2016 Hybrid environment Q4576650 KB4576650 January 20, 2021
• 4576649 System.InvalidCastException when you change passwords in Outlook on the web in Exchange Server 2019 and 2016 Q4576649 KB4576649 January 20, 2021
• 4570255 NullReferenceException occurs when you run TestFederationTrust in Exchange Server 2019 and 2016 Q4570255 KB4570255 January 20, 2021
• 4570254 MSExchangeMapiMailboxAppPool causes prolonged 100% CPU in Exchange Server 2019 and 2016 Q4570254 KB4570254 January 20, 2021
• 4570253 CompletedWithErrors without details for mailbox migration batches in Exchange Server 2019 and 2016 Q4570253 KB4570253 January 20, 2021
• 4570252 Intermittent poison messages due to NotInBagPropertyErrorException in Exchange Server 2019 and 2016 Q4570252 KB4570252 January 20, 2021
• 4570251 Inbox rule applying a personal tag doesn't stamp RetentionDate in Exchange Server 2019 and 2016 Q4570251 KB4570251 January 20, 2021
• 4570248 Get-CASMailbox uses wrong LDAP filter for ECPEnabled in Exchange Server 2019 and 2016 Q4570248 KB4570248 January 20, 2021
• 4570247 CSV log of Discovery export fails to properly escape target path field in Exchange Server 2019 and 2016 Q4570247 KB4570247 January 20, 2021
• 4570246 EdgeTransport crashes with Event ID 1000 (exception code 0xc00000fd) in Exchange Server 2019 and 2016 Q4570246 KB4570246 January 20, 2021
• 4570245 ESEUtil /p fails if any long value (LV) is corrupted in Exchange Server 2019 and 2016 Q4570245 KB4570245 January 20, 2021
• 4563416 Can't view Online user free/busy status in Exchange Server 2019 and 2016 Q4563416 KB4563416 January 20, 2021
• 4559446 Changes to Outlook on the web blocked file extensions and MIME types in Exchange Server 2019 and 2016 Q4559446 KB4559446 January 20, 2021
• 4559444 Conversion from HTML to RTF removes non-breaking space in Exchange Server 2019 and 2016 Q4559444 KB4559444 January 20, 2021
• 4559443 Managed Folder Assistant fails with Event ID 9004 NotInBagPropertyErrorException in Exchange Server 2019 and 2016 Q4559443 KB4559443 January 20, 2021
• 4559442 2080 Events caused by empty values in HKLM\SYSTEM\CurrentControlSet\Services\MSExchange ADAccess\Instance0 in Exchange Server 2019 and 2016 Q4559442 KB4559442 January 20, 2021
• 4559441 Foreign language characters set in RejectMessageReasonText of a transport rule aren't shown correctly in Exchange Server 2019 and 2016 Q4559441 KB4559441 January 20, 2021
• 4559440 Export to a PST for an eDiscovery search fails in Exchange Server 2019 and 2016 Q4559440 KB4559440 January 20, 2021
• 4559439 EAS creates failure report if a message with unknown recipients is in Drafts in Exchange Server 2019 and 2016 Q4559439 KB4559439 January 20, 2021
• 4559438 Edge Transport server hangs in Exchange Server 2019 and 2016 Q4559438 KB4559438 January 20, 2021
• 4559437 PR_RECIPIENT_ENTRYID is computed if no email address or type in Exchange Server 2019 and 2016 Q4559437 KB4559437 January 20, 2021
• 4559436 Attachments with properties (like Azure Information Protection labels) don't always match in Exchange Server 2019 and 2016 Q4559436 KB4559436 January 20, 2021
• 4559435 Introduce an OrganizationConfig flag to enable or disable recipient read session in Exchange Server 2019 and 2016 Q4559435 KB4559435 January 20, 2021
• 4556414 Cumulative Update 17 for Exchange Server 2016 Q4556414 KB4556414 January 20, 2021
• 4551450 Calls from Teams to Exchange Server 2016 Unified Messaging voice mail fail Q4551450 KB4551450 January 20, 2021
• 4549689 HMA EvoSTS certificate rollover causes authentication prompts due to stalled key on worker process spawn (warmup phase) in Exchange Server 2019 and 2016 Q4549689 KB4549689 January 20, 2021
• 4547723 Can't sign in to Office 365 if configuring hybrid with Chrome SameSite Cookie enabled in Exchange Server 2019 and 2016 Q4547723 KB4547723 January 20, 2021
• 4547722 Can’t go from Office 365 to Enterprise in Exchange Server 2019 or 2016 Exchange admin center (EAC) if Chrome SameSite Cookie is enabled Q4547722 KB4547722 January 20, 2021
• 4547716 Event ID 1325 and Test-ExchangeSearch crashes application pool with NullReferenceException in Exchange Server 2016 Q4547716 KB4547716 January 20, 2021
• 4547715 New created search folder retention policy is changed in Exchange Server 2019 or 2016 Q4547715 KB4547715 January 20, 2021
• 4547714 Can't add remote shared mailbox by using ECP into distribution group in Exchange Server 2019 and 2016 hybrid environment Q4547714 KB4547714 January 20, 2021
• 4547713 IsOnlineMeeting is always false for Teams-only meetings in Exchange Server 2019 and 2016 Q4547713 KB4547713 January 20, 2021
• 4547712 Outlook on the web (OWA) exposes junk operations even if disabled via OwaMailboxPolicy in Exchange Server 2019 and 2016 Q4547712 KB4547712 January 20, 2021
• 4547711 Public folder permissions aren’t applied from Outlook in Exchange Server 2019 or 2016 hybrid environment Q4547711 KB4547711 January 20, 2021
• 4547710 New-MailboxSearch with In-Place Hold enabled replaces all values in msExchUserHoldPolicies if adding a value in Exchange Server 2019 and 2016 Q4547710 KB4547710 January 20, 2021
• 4547709 InternetWebProxyBypassList is ignored by Mailbox Replication service in Exchange Server 2019 and 2016 Q4547709 KB4547709 January 20, 2021
• 4547708 Elevation of privileges possible when Active Directory permissions role is granted in Exchange Server 2019 and 2016 Q4547708 KB4547708 January 20, 2021
• 4547707 Enable piping for Restore-RecoverableItems in Exchange Server 2019 and 2016 Q4547707 KB4547707 January 20, 2021
• 4547706 Birthday isn't correctly synced to iOS native mail app in Exchange Server 2019 and 2016 Q4547706 KB4547706 January 20, 2021
• 4547705 Authentication loop between msft.sts.microsoft.com/adfs and OWA in Exchange Server 2019 and 2016 Q4547705 KB4547705 January 20, 2021
• 4540123 Description of the security update for Microsoft Exchange Server 2019 and 2016: March 10, 2020 Q4540123 KB4540123 January 20, 2021
• 4537678 Cumulative Update 16 for Exchange Server 2016 Q4537678 KB4537678 January 20, 2021
• 4536987 Description of the security update for Microsoft Exchange Server 2019 and 2016: February 11, 2020 Q4536987 KB4536987 January 20, 2021
• 4532747 Address list separation is not working for a user without a mailbox in Exchange Server 2019 and 2016 Q4532747 KB4532747 January 20, 2021
• 4532190 Autodiscover Event ID 1 after installing Exchange Server 2019 CU3 or Exchange Server 2016 CU14 Q4532190 KB4532190 January 20, 2021
• 4528696 Exchange PowerShell cmdlets take longer time to run in Exchange Server 2019 and 2016 Q4528696 KB4528696 January 20, 2021
• 4528695 Event ID 4009 when using SubjectOrBodyMatchesPatterns on Edge server in Exchange Server 2019 and 2016 Q4528695 KB4528695 January 20, 2021
• 4528694 Can't open .ics file in Outlook on the web in Exchange Server 2019 and 2016 Q4528694 KB4528694 January 20, 2021
• 4528693 Get-CalendarDiagnosticLog is proxied for queries within the same forest in Exchange Server 2019 and 2016 Q4528693 KB4528693 January 20, 2021
• 4528692 "A parameter was specified that isn't valid" error when creating transport rule in Exchange Server 2019 and 2016 Q4528692 KB4528692 January 20, 2021
• 4528690 Can't move or delete folder in Outlook online mode if the destination has a folder with the same name in Exchange Server 2019 and 2016 Q4528690 KB4528690 January 20, 2021
• 4528689 Outlook on the web shows MailTip when recipients equal the large audience size in Exchange Server 2019 and 2016 Q4528689 KB4528689 January 20, 2021
• 4528688 Only one recipient shows when saving draft by using Exchange ActiveSync version 16.0 in Exchange Server 2019 and 2016 Q4528688 KB4528688 January 20, 2021
• 4528687 NotificationClient logs aren't purged and consume lots of disk in Exchange Server 2019 and 2016 Q4528687 KB4528687 January 20, 2021
• 4523519 Set-SendConnector doesn't work for Exchange Server in hybrid scenarios with Edge Server installed Q4523519 KB4523519 January 20, 2021
• 4523171 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: November 12, 2019 Q4523171 KB4523171 January 20, 2021
• 4520319 S/MIME signed reply draft behaves like the first message in conversation in Exchange Server 2019 and 2016 Q4520319 KB4520319 January 20, 2021
• 4515276 Room mailbox accepts a meeting as “Free” if a booking delegate is set in Exchange Server 2019 and 2016 Q4515276 KB4515276 January 20, 2021
• 4515275 Enable Get/Restore-RecoverableItems to work with Purges folder in Exchange Server 2019 and 2016 Q4515275 KB4515275 January 20, 2021
• 4515274 AutodiscoverV2 request returns REST API endpoint not AutoDiscoverV1 endpoint in Exchange Server 2019 and 2016 Q4515274 KB4515274 January 20, 2021
• 4515273 Mailbox auditing fails when you use SHA1Managed in Exchange Server 2019 and 2016 Q4515273 KB4515273 January 20, 2021
• 4515272 Message is blocked in “SMTP Delivery to Mailbox” queue if exchange server is added in groups of a child domain in Exchange Server 2019 and 2016 Q4515272 KB4515272 January 20, 2021
• 4515271 Can’t convert a migrated remote user mailbox to shared in Exchange Server 2019 and 2016 Q4515271 KB4515271 January 20, 2021
• 4515270 SubmissionQueueLengthMonitor shows “System.ArgumentException: Transition timeout…” in Exchange Server 2019 and 2016 Q4515270 KB4515270 January 20, 2021
• 4515269 SentToMemberOf shows every recipient type not distribution groups when you create transport rule in Exchange Server 2019 and 2016 Q4515269 KB4515269 January 20, 2021
• 4515267 NDR occurs when you resend message from alternate journaling mailbox to journaling mailbox in Exchange Server 2019 and 2016 Q4515267 KB4515267 January 20, 2021
• 4515266 Infinite loop in Recurrence.GetNumberOfYearsBetween() with the Japanese calendar in Exchange Server 2019 and 2016 Q4515266 KB4515266 January 20, 2021
• 4515265 Removing In-Place Hold doesn't work for mailboxes in different domains in Exchange Server 2019 and 2016 Q4515265 KB4515265 January 20, 2021
• 4515264 FindPeople request from Skype for Business on Mac fails with "Invalid Shape Specification" in Exchange Server 2019 and 2016 Q4515264 KB4515264 January 20, 2021
• 4515263 Hide the "Validate-MailFlowThroughFrontDoor" command for Exchange Server 2019 and 2016 Q4515263 KB4515263 January 20, 2021
• 4515262 Enable Remove-MobileDevice to delete mobile devices after migrating to Office 365 from Exchange Server 2019 and 2016 Q4515262 KB4515262 January 20, 2021
• 4515261 Can't copy eDiscovery search results for mailboxes with Exchange online archives in Office 365 in Exchange Server 2019 and 2016 Q4515261 KB4515261 January 20, 2021
• 4515257 Hash mismatch is reported for Exchange DLLs in the bin directory of Exchange Server 2019 and 2016 Q4515257 KB4515257 January 20, 2021
• 4515256 “The function cannot be performed…” error when you send a message that’s open for a long time in Exchange Server 2016 Q4515256 KB4515256 January 20, 2021
• 4515255 “X-InnerException: Microsoft.Mapi.MapiExceptionRpcServerTooBusy” error when you try to use a mailbox in Exchange Server 2016 Q4515255 KB4515255 January 20, 2021
• 4515254 Event 1009 frequently occurs in application logs for lagged database copies in Exchange Server 2016 Q4515254 KB4515254 January 20, 2021
• 4509409 Description of the security update for Microsoft Exchange Server 2013 and 2016: July 9, 2019 Q4509409 KB4509409 January 20, 2021
• 4502159 Adding or removing mailbox permission in EAC doesn't address the msExchDelegateListLink attribute in Exchange Server 2019 and 2016 Q4502159 KB4502159 January 20, 2021
• 4502158 SyncFolderItems contains duplicated ReadFlagChange items in Exchange Server 2019 and 2016 Q4502158 KB4502158 January 20, 2021
• 4502157 The Find command not returning the HasAttachments element in Exchange Server 2019 and 2016 Q4502157 KB4502157 January 20, 2021
• 4502156 Audit logs aren’t updated when "-WhatIf" is used as $false in the command in Exchange Server 2019 and 2016 Q4502156 KB4502156 January 20, 2021
• 4502155 "The primary SMTP address must be specified when referencing a mailbox" error when you use impersonation in Exchange Server 2019 and 2016 Q4502155 KB4502155 January 20, 2021
• 4502154 Providing information for administrators when auto forward limit is reached in Exchange Server 2019 and 2016 Q4502154 KB4502154 January 20, 2021
• 4502141 Appointment that’s created by responding to an email message doesn’t show in any Outlook calendar views in Exchange Server 2019 and Exchange Server 2016 Q4502141 KB4502141 January 20, 2021
• 4502140 Can't preview an eDiscovery search when there are multiple domains in Exchange Server 2019 and Exchange Server 2016 Q4502140 KB4502140 January 20, 2021
• 4502136 The response of FETCH (BODYSTRUCTURE) command of IMAP violates RFC 3501 in Exchange Server 2019 and 2016 Q4502136 KB4502136 January 20, 2021
• 4502133 Can't use Outlook on the web to reply a partner email through mutual TLS in Exchange Server 2019 and 2016 Q4502133 KB4502133 January 20, 2021
• 4502132 Can't reply to old emails after migration even though old legacyExchangeDN is set to migrated mailbox in Exchange Server 2019 and 2016 Q4502132 KB4502132 January 20, 2021
• 4502131 "TLS negotiation failed with error UnknownCredentials" error after you update TLSCertificateName on Office 365 send connector in Exchange Server hybrid environment Q4502131 KB4502131 January 20, 2021
• 4488396 Can't search any results in manually added shared mailbox in Outlook in Exchange Server 2019 and 2016 Q4488396 KB4488396 January 20, 2021
• 4488266 Client application doesn't honor EwsAllowList in Exchange Server 2019 and 2016 Q4488266 KB4488266 January 20, 2021
• 4488265 "There are problems with the signature" error occurs for digital signature message if attachment filtering is enabled in Exchange Server 2019 and 2016 Q4488265 KB4488265 January 20, 2021
• 4488258 OAuth authentication is removed when you save MAPI virtual directory settings in EAC in Exchange Server 2019 and 2016 Q4488258 KB4488258 January 20, 2021
• 4456233 UAPStatisticsLog and RecordReview are created on the D drive after you deploy Exchange Server 2016 Q4456233 KB4456233 January 20, 2021
• 4456232 Outlook on the web enters an authentication loop when you use device registration in Exchange Server 2016 Q4456232 KB4456232 January 20, 2021
• 4456226 Require SSL setting of MAPI virtual directory is reset after you install a cumulative update of Exchange Server 2016 Q4456226 KB4456226 January 20, 2021
• 4294204 Changing "IsOutOfService" to "False" in an earlier Exchange Server version does not immediately update in a later Exchange Server environment Q4294204 KB4294204 January 20, 2021
• 4133605 Cmdlets to create or modify a remote shared mailbox in an on-premises Exchange environment Q4133605 KB4133605 January 20, 2021
• 4091453 Update improves linguistics features and CJK handling for search in Exchange Server 2016 Q4091453 KB4091453 January 20, 2021
• 4076520 MatchSubdomains isn't usable for Set-AcceptedDomain in Exchange Server 2016 Q4076520 KB4076520 January 20, 2021
• 4073531 CultureNotFoundException when selecting an LCID 4096 language in OWA for Exchange Server 2016 Q4073531 KB4073531 January 20, 2021
• 4073111 Can't access a CAS website such as OWA/ECP/Autodiscover in Exchange Server 2016 Q4073111 KB4073111 January 20, 2021
• 4073095 "550 5.6.0 CAT.InvalidContent.Exception" and email isn't delivered in Exchange Server 2016 and 2013 Q4073095 KB4073095 January 20, 2021
• 4058401 Administrator audit logging does not record Set-ServerComponentState cmdlet details in Exchange Server 2013 or 2016 environment Q4058401 KB4058401 January 20, 2021
• 4058384 Get-CalendarDiagnosticAnalysis shows DateTime in 12-hour clock in Exchange Server 2016 and 2013 Q4058384 KB4058384 January 20, 2021
• 4058372 Blank page in Exchange Admin Center Audit Log in Exchange Server 2016 Q4058372 KB4058372 January 20, 2021
• 4057290 Incorrect user is returned in the ECP when one user's display name matches another user's alias Q4057290 KB4057290 January 20, 2021
• 4057248 Many Watson reports for StoragePermanentException in Exchange Server 2016 Q4057248 KB4057248 January 20, 2021
• 4036108 Description of the security update for Microsoft Exchange: September 12, 2017 Q4036108 KB4036108 January 20, 2021
• 4024653 Active Monitoring probes fail when you use a new accepted domain as the default domain in Exchange Server 2016 Q4024653 KB4024653 January 20, 2021
• 4024648 A new contact in OWA may be merged into an existing contact in Exchange Server 2016 Q4024648 KB4024648 January 20, 2021
• 4015665 FIX: SyncDelivery logging folders and files are created in wrong location in Exchange Server 2016 Q4015665 KB4015665 January 20, 2021
• 4015662 Deleted inline picture is displayed as an attachment after you switch a message to plain text in Exchange Server 2016 Q4015662 KB4015662 January 20, 2021
• 4131512 Get-Help cmdlet for Exchange Server 2016 fails on Windows Server 2016 Q4131512 KB4131512 January 19, 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
• 4588884 Cumulative Update 19 for Exchange Server 2016 Q4588884 KB4588884 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
• 4583545 Make DomainName in Authserver a multivalued parameter in Exchange Server 2019 and 2016 Q4583545 KB4583545 January 14, 2021
• 4583539 Non-breaking space is visible in message body in Outlook in Exchange Server 2019 and 2016 Q4583539 KB4583539 January 14, 2021
• 4583538 Microsoft Teams REST calls exceed the default value of maxQueryStringLength in Exchange Server 2019 and 2016 Q4583538 KB4583538 January 14, 2021
• 4583537 Update Korean word breaker in Exchange Server 2019 and 2016 Q4583537 KB4583537 January 14, 2021
• 4583536 Set-MailboxFolderPermission is included in Mail Recipient Creation in Exchange Server 2019 and 2016 Q4583536 KB4583536 January 14, 2021
• 4583535 New-Moverequest, Resume-Moverequest, and Remove-Moverequest not logged in Audit logs in Exchange Server 2019 and 2016 Q4583535 KB4583535 January 14, 2021
• 4583534 Event ID 65535 System.Runtime.Serialization errors in Application log in Exchange Server 2019 or 2016 Q4583534 KB4583534 January 14, 2021
• 4583533 Exchange Server 2019 or 2016 installation fails with error "The user has insufficient access rights" Q4583533 KB4583533 January 14, 2021
• 4583532 ELC MRM archiving fails due to DomainName in AuthServer in Exchange Server 2019 and 2016 Q4583532 KB4583532 January 14, 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 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
• 4471389 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: January 8, 2019 Q4471389 KB4471389 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
• 4588297 Attachments can’t be downloaded or previewed from Outlook Web App Q4588297 KB4588297 January 13, 2021
• 4571788 Cumulative Update 18 for Exchange Server 2016 Q4571788 KB4571788 January 13, 2021
• 4459266 Description of the security update for Microsoft Exchange Server 2013 and 2016: October 9, 2018 Q4459266 KB4459266 January 13, 2021