Exchange Server 2019 articles, fixes and updates - Year 2020

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Exchange Server 2019 that have been released in Year 2020. The list is daily updated.

• 2983209 Access denied when you try to give user "send-as" or "receive as" permission for a Distribution Group in Exchange Server Q2983209 KB2983209 December 18, 2020
• 2961741 Exchange Server delegated setup fails when the setup account is a member of Domain Admins Q2961741 KB2961741 December 18, 2020
• 4577438 Autodiscover v2 returns InternalURL not ExternalURLs in other site Q4577438 KB4577438 October 23, 2020
• 4577352 Description of the security update for Microsoft Exchange Server 2019 and 2016: September 8, 2020 Q4577352 KB4577352 October 23, 2020
• 4576652 Updates for Exchange Server 2019 Sizing Calculator version 10.5 Q4576652 KB4576652 October 23, 2020
• 4576651 Can't join Teams meetings from Surface Hub devices after installing Exchange Server 2019 CU5 or Exchange Server 2016 CU16 Q4576651 KB4576651 October 23, 2020
• 4576650 Can't add remote mailbox when setting email forwarding in Exchange Server 2019 or 2016 Hybrid environment Q4576650 KB4576650 October 23, 2020
• 4576649 System.InvalidCastException when you change passwords in Outlook on the web in Exchange Server 2019 and 2016 Q4576649 KB4576649 October 23, 2020
• 4570255 NullReferenceException occurs when you run TestFederationTrust in Exchange Server 2019 and 2016 Q4570255 KB4570255 October 23, 2020
• 4570254 MSExchangeMapiMailboxAppPool causes prolonged 100% CPU in Exchange Server 2019 and 2016 Q4570254 KB4570254 October 23, 2020
• 4570253 CompletedWithErrors without details for mailbox migration batches in Exchange Server 2019 and 2016 Q4570253 KB4570253 October 23, 2020
• 4570252 Intermittent poison messages due to NotInBagPropertyErrorException in Exchange Server 2019 and 2016 Q4570252 KB4570252 October 23, 2020
• 4570251 Inbox rule applying a personal tag doesn't stamp RetentionDate in Exchange Server 2019 and 2016 Q4570251 KB4570251 October 23, 2020
• 4570248 Get-CASMailbox uses wrong LDAP filter for ECPEnabled in Exchange Server 2019 and 2016 Q4570248 KB4570248 October 23, 2020
• 4570247 CSV log of Discovery export fails to properly escape target path field in Exchange Server 2019 and 2016 Q4570247 KB4570247 October 23, 2020
• 4570246 EdgeTransport crashes with Event ID 1000 (exception code 0xc00000fd) in Exchange Server 2019 and 2016 Q4570246 KB4570246 October 23, 2020
• 4570245 ESEUtil /p fails if any long value (LV) is corrupted in Exchange Server 2019 and 2016 Q4570245 KB4570245 October 23, 2020
• 4563416 Can't view Online user free/busy status in Exchange Server 2019 and 2016 Q4563416 KB4563416 October 23, 2020
• 4559446 Changes to Outlook on the web blocked file extensions and MIME types in Exchange Server 2019 and 2016 Q4559446 KB4559446 October 23, 2020
• 4559443 Managed Folder Assistant fails with Event ID 9004 NotInBagPropertyErrorException in Exchange Server 2019 and 2016 Q4559443 KB4559443 October 23, 2020
• 4559442 2080 Events caused by empty values in HKLM\SYSTEM\CurrentControlSet\Services\MSExchange ADAccess\Instance0 in Exchange Server 2019 and 2016 Q4559442 KB4559442 October 23, 2020
• 4559441 Foreign language characters set in RejectMessageReasonText of a transport rule aren't shown correctly in Exchange Server 2019 and 2016 Q4559441 KB4559441 October 23, 2020
• 4559440 Export to a PST for an eDiscovery search fails in Exchange Server 2019 and 2016 Q4559440 KB4559440 October 23, 2020
• 4559439 EAS creates failure report if a message with unknown recipients is in Drafts in Exchange Server 2019 and 2016 Q4559439 KB4559439 October 23, 2020
• 4559438 Edge Transport server hangs in Exchange Server 2019 and 2016 Q4559438 KB4559438 October 23, 2020
• 4559437 PR_RECIPIENT_ENTRYID is computed if no email address or type in Exchange Server 2019 and 2016 Q4559437 KB4559437 October 23, 2020
• 4559436 Attachments with properties (like Azure Information Protection labels) don't always match in Exchange Server 2019 and 2016 Q4559436 KB4559436 October 23, 2020
• 4559435 Introduce an OrganizationConfig flag to enable or disable recipient read session in Exchange Server 2019 and 2016 Q4559435 KB4559435 October 23, 2020
• 4552472 Exchange Server 2019 Sizing Calculator version 10.4 is available Q4552472 KB4552472 October 23, 2020
• 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 October 23, 2020
• 4547723 Can't sign in to Office 365 if configuring hybrid with Chrome SameSite Cookie enabled in Exchange Server 2019 and 2016 Q4547723 KB4547723 October 23, 2020
• 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 October 23, 2020
• 4547721 Exchange Sizing Calculator still supports mail.que database over 2 TB in Exchange Server 2019 Q4547721 KB4547721 October 23, 2020
• 4547720 Partial word searches not working for mailboxes in Outlook online mode in Exchange Server 2019 Q4547720 KB4547720 October 23, 2020
• 4547719 MCDB status is "Offline" and SSDs are not formatted in Exchange Server 2019 Q4547719 KB4547719 October 23, 2020
• 4547715 New created search folder retention policy is changed in Exchange Server 2019 or 2016 Q4547715 KB4547715 October 23, 2020
• 4547714 Can't add remote shared mailbox by using ECP into distribution group in Exchange Server 2019 and 2016 hybrid environment Q4547714 KB4547714 October 23, 2020
• 4547713 IsOnlineMeeting is always false for Teams-only meetings in Exchange Server 2019 and 2016 Q4547713 KB4547713 October 23, 2020
• 4547712 Outlook on the web (OWA) exposes junk operations even if disabled via OwaMailboxPolicy in Exchange Server 2019 and 2016 Q4547712 KB4547712 October 23, 2020
• 4547711 Public folder permissions aren’t applied from Outlook in Exchange Server 2019 or 2016 hybrid environment Q4547711 KB4547711 October 23, 2020
• 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 October 23, 2020
• 4547709 InternetWebProxyBypassList is ignored by Mailbox Replication service in Exchange Server 2019 and 2016 Q4547709 KB4547709 October 23, 2020
• 4547708 Elevation of privileges possible when Active Directory permissions role is granted in Exchange Server 2019 and 2016 Q4547708 KB4547708 October 23, 2020
• 4547707 Enable piping for Restore-RecoverableItems in Exchange Server 2019 and 2016 Q4547707 KB4547707 October 23, 2020
• 4547706 Birthday isn't correctly synced to iOS native mail app in Exchange Server 2019 and 2016 Q4547706 KB4547706 October 23, 2020
• 4547705 Authentication loop between msft.sts.microsoft.com/adfs and OWA in Exchange Server 2019 and 2016 Q4547705 KB4547705 October 23, 2020
• 4540123 Description of the security update for Microsoft Exchange Server 2019 and 2016: March 10, 2020 Q4540123 KB4540123 October 23, 2020
• 4538303 Exchange 2019 Setup Prerequisite Check fails for .NET 4.8 Framework in CU4 on Windows builds 1909 and 1903 Q4538303 KB4538303 October 23, 2020
• 4536987 Description of the security update for Microsoft Exchange Server 2019 and 2016: February 11, 2020 Q4536987 KB4536987 October 23, 2020
• 4536552 Export-ModernPublicFolderStatistics.ps1 is not working in Exchange Server 2019 Q4536552 KB4536552 October 23, 2020
• 4532747 Address list separation is not working for a user without a mailbox in Exchange Server 2019 and 2016 Q4532747 KB4532747 October 23, 2020
• 4532744 System.ArgumentNullException when you use Set-user to assign block legacy auth policy in Exchange Server 2019 Q4532744 KB4532744 October 23, 2020
• 4532190 Autodiscover Event ID 1 after installing Exchange Server 2019 CU3 or Exchange Server 2016 CU14 Q4532190 KB4532190 October 23, 2020
• 4528696 Exchange PowerShell cmdlets take longer time to run in Exchange Server 2019 and 2016 Q4528696 KB4528696 October 23, 2020
• 4528695 Event ID 4009 when using SubjectOrBodyMatchesPatterns on Edge server in Exchange Server 2019 and 2016 Q4528695 KB4528695 October 23, 2020
• 4528694 Can't open .ics file in Outlook on the web in Exchange Server 2019 and 2016 Q4528694 KB4528694 October 23, 2020
• 4528693 Get-CalendarDiagnosticLog is proxied for queries within the same forest in Exchange Server 2019 and 2016 Q4528693 KB4528693 October 23, 2020
• 4528692 "A parameter was specified that isn't valid" error when creating transport rule in Exchange Server 2019 and 2016 Q4528692 KB4528692 October 23, 2020
• 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 October 23, 2020
• 4528689 Outlook on the web shows MailTip when recipients equal the large audience size in Exchange Server 2019 and 2016 Q4528689 KB4528689 October 23, 2020
• 4528688 Only one recipient shows when saving draft by using Exchange ActiveSync version 16.0 in Exchange Server 2019 and 2016 Q4528688 KB4528688 October 23, 2020
• 4528687 NotificationClient logs aren't purged and consume lots of disk in Exchange Server 2019 and 2016 Q4528687 KB4528687 October 23, 2020
• 4523519 Set-SendConnector doesn't work for Exchange Server in hybrid scenarios with Edge Server installed Q4523519 KB4523519 October 23, 2020
• 4523171 Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: November 12, 2019 Q4523171 KB4523171 October 23, 2020
• 4520319 S/MIME signed reply draft behaves like the first message in conversation in Exchange Server 2019 and 2016 Q4520319 KB4520319 October 23, 2020
• 4515276 Room mailbox accepts a meeting as “Free” if a booking delegate is set in Exchange Server 2019 and 2016 Q4515276 KB4515276 October 23, 2020
• 4515275 Enable Get/Restore-RecoverableItems to work with Purges folder in Exchange Server 2019 and 2016 Q4515275 KB4515275 October 23, 2020
• 4515274 AutodiscoverV2 request returns REST API endpoint not AutoDiscoverV1 endpoint in Exchange Server 2019 and 2016 Q4515274 KB4515274 October 23, 2020
• 4515273 Mailbox auditing fails when you use SHA1Managed in Exchange Server 2019 and 2016 Q4515273 KB4515273 October 23, 2020
• 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 October 23, 2020
• 4515271 Can’t convert a migrated remote user mailbox to shared in Exchange Server 2019 and 2016 Q4515271 KB4515271 October 23, 2020
• 4515270 SubmissionQueueLengthMonitor shows “System.ArgumentException: Transition timeout…” in Exchange Server 2019 and 2016 Q4515270 KB4515270 October 23, 2020
• 4515269 SentToMemberOf shows every recipient type not distribution groups when you create transport rule in Exchange Server 2019 and 2016 Q4515269 KB4515269 October 23, 2020
• 4515267 NDR occurs when you resend message from alternate journaling mailbox to journaling mailbox in Exchange Server 2019 and 2016 Q4515267 KB4515267 October 23, 2020
• 4515266 Infinite loop in Recurrence.GetNumberOfYearsBetween() with the Japanese calendar in Exchange Server 2019 and 2016 Q4515266 KB4515266 October 23, 2020
• 4515265 Removing In-Place Hold doesn't work for mailboxes in different domains in Exchange Server 2019 and 2016 Q4515265 KB4515265 October 23, 2020
• 4515264 FindPeople request from Skype for Business on Mac fails with "Invalid Shape Specification" in Exchange Server 2019 and 2016 Q4515264 KB4515264 October 23, 2020
• 4515263 Hide the "Validate-MailFlowThroughFrontDoor" command for Exchange Server 2019 and 2016 Q4515263 KB4515263 October 23, 2020
• 4515262 Enable Remove-MobileDevice to delete mobile devices after migrating to Office 365 from Exchange Server 2019 and 2016 Q4515262 KB4515262 October 23, 2020
• 4515261 Can't copy eDiscovery search results for mailboxes with Exchange online archives in Office 365 in Exchange Server 2019 and 2016 Q4515261 KB4515261 October 23, 2020
• 4515257 Hash mismatch is reported for Exchange DLLs in the bin directory of Exchange Server 2019 and 2016 Q4515257 KB4515257 October 23, 2020
• 4509408 Description of the security update for Microsoft Exchange Server 2019: July 9, 2019 Q4509408 KB4509408 October 23, 2020
• 4502159 Adding or removing mailbox permission in EAC doesn't address the msExchDelegateListLink attribute in Exchange Server 2019 and 2016 Q4502159 KB4502159 October 23, 2020
• 4502158 SyncFolderItems contains duplicated ReadFlagChange items in Exchange Server 2019 and 2016 Q4502158 KB4502158 October 23, 2020
• 4502157 The Find command not returning the HasAttachments element in Exchange Server 2019 and 2016 Q4502157 KB4502157 October 23, 2020
• 4502156 Audit logs aren’t updated when "-WhatIf" is used as $false in the command in Exchange Server 2019 and 2016 Q4502156 KB4502156 October 23, 2020
• 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 October 23, 2020
• 4502154 Providing information for administrators when auto forward limit is reached in Exchange Server 2019 and 2016 Q4502154 KB4502154 October 23, 2020
• 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 October 23, 2020
• 4502140 Can't preview an eDiscovery search when there are multiple domains in Exchange Server 2019 and Exchange Server 2016 Q4502140 KB4502140 October 23, 2020
• 4502136 The response of FETCH (BODYSTRUCTURE) command of IMAP violates RFC 3501 in Exchange Server 2019 and 2016 Q4502136 KB4502136 October 23, 2020
• 4502135 Correct the error message that you receive when installing Exchange Server 2019 in an organization that has Exchange Server 2010 installed Q4502135 KB4502135 October 23, 2020
• 4502134 Can't get all the emails when searching mailbox by using an end date that's different from today in Exchange Server 2019 Q4502134 KB4502134 October 23, 2020
• 4502133 Can't use Outlook on the web to reply a partner email through mutual TLS in Exchange Server 2019 and 2016 Q4502133 KB4502133 October 23, 2020
• 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 October 23, 2020
• 4502131 "TLS negotiation failed with error UnknownCredentials" error after you update TLSCertificateName on Office 365 send connector in Exchange Server hybrid environment Q4502131 KB4502131 October 23, 2020
• 4499503 Heavy traffic because of restriction created when organization forms library has more than 500 items in Exchange Server 2019 and 2016 Q4499503 KB4499503 October 23, 2020
• 4490060 Exchange Web Services Push Notifications can be used to gain unauthorized access Q4490060 KB4490060 October 23, 2020
• 4490059 Reducing permissions required to run Exchange Server when you use the Shared Permissions Model Q4490059 KB4490059 October 23, 2020
• 4488398 "The Microsoft Exchange Replication service may not be running on server" error when you add a mailbox database copy in Exchange Server 2019 Q4488398 KB4488398 October 23, 2020
• 4488396 Can't search any results in manually added shared mailbox in Outlook in Exchange Server 2019 and 2016 Q4488396 KB4488396 October 23, 2020
• 4488268 Disable the irrelevant Query logs that're created in Exchange Server 2019 and 2016 Q4488268 KB4488268 October 23, 2020
• 4488267 Test-OAuthConnectivity always fails when Exchange Server uses proxy to connect to Internet in Exchange Server 2019 and 2016 Q4488267 KB4488267 October 23, 2020
• 4488266 Client application doesn't honor EwsAllowList in Exchange Server 2019 and 2016 Q4488266 KB4488266 October 23, 2020
• 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 October 23, 2020
• 4488264 Mailbox that has a bad move request can't be cleaned up from destination mailbox database in Exchange Server 2019 and 2016 Q4488264 KB4488264 October 23, 2020
• 4488263 X-MS-Exchange-Organization-BCC header isn't encoded correctly in Exchange Server 2019 and 2016 Q4488263 KB4488263 October 23, 2020
• 4488262 Delivery Reports exception when tracking a meeting request that's sent with a room resource in Exchange Server 2019 and 2016 Q4488262 KB4488262 October 23, 2020
• 4488261 Event ID 1002 when the store worker process crashes in Exchange Server 2019 and 2016 Q4488261 KB4488261 October 23, 2020
• 4488260 New-MailboxExportRequest and New-MailboxImportRequest don't honor RBAC management scope in Exchange Server 2019 and 2016 Q4488260 KB4488260 October 23, 2020
• 4488259 MailTip shows wrong number of users for a distribution group if the users are in different domains in Exchange Server 2019 and 2016 Q4488259 KB4488259 October 23, 2020
• 4488258 OAuth authentication is removed when you save MAPI virtual directory settings in EAC in Exchange Server 2019 and 2016 Q4488258 KB4488258 October 23, 2020
• 4488080 New-MigrationBatch doesn't honor RBAC management scope in Exchange Server 2019 and 2016 Q4488080 KB4488080 October 23, 2020
• 4488079 Exchange Server 2016 allows adding Exchange Server 2019 mailbox server into a same DAG and vice versa Q4488079 KB4488079 October 23, 2020
• 4488078 Public folder contact lists don't show contact's profile picture in Outlook on the web in Exchange Server 2019 and 2016 Q4488078 KB4488078 October 23, 2020
• 4488076 Outlook on the Web can't be loaded when users use an invalid Windows language in Exchange Server 2019 and 2016 Q4488076 KB4488076 October 23, 2020
• 4487596 Emails are blocked in moderator mailbox Outbox folder when you send large volumes of emails in Exchange Server 2019 and 2016 Q4487596 KB4487596 October 23, 2020
• 4487591 The recipient scope setting doesn't work for sibling domains when including OUs in the scope in Exchange Server 2019 and 2016 Q4487591 KB4487591 October 23, 2020
• 3035227 Some Android devices do not redirect to Exchange Online Q3035227 KB3035227 May 31, 2020
• 3195087 Messages aren't evenly distributed if BasicAuth or BasicAuthRequireTLS is used in Exchange Server 2019, 2016, or 2013 Q3195087 KB3195087 April 3, 2020
• 4019802 The Exchange Edge Transport server version is incorrect in EAC or ECP after upgrade Q4019802 KB4019802 April 2, 2020