This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures (CVE):

In this scenario, you can’t sign in to OWA and EAC, and you receive an error message that resembles the following: Server Error in '/ecp or owa' Application. Unable to cast object of type 'Microsoft.Exchange.Security.Authentication.AdfsIdentity' to type 'System.Security.Principal.WindowsIdentity'.

Support for .NET Framework 4.8.1 on Microsoft Windows Server 2022. This update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures (CVE):

After you install and upgrade to Microsoft Exchange Server 2016 Cumulative Update 6 (CU6), you can't access Outlook Web App (OWA) or Exchange Control Panel (ECP), and you receive the following error message: :- ( Something went wrong. We can't get that information right now.

Exchange Server file information. The English (United States) version of this update installs files that have the attributes that are listed in the following tables.

After you install and upgrade to Microsoft Exchange Server 2016 Cumulative Update 6 (CU6), you can't access Outlook Web App (OWA) or Exchange Control Panel (ECP), and you receive the following error message: We can't get that information right now. Please try again later.

Summary. You can manage RemoteUserMailbox and RemoteSharedMailbox mailbox types through either Exchange Admin Center (EAC) or Exchange Management Shell (EMS). However, the RemoteEquipmentMailbox and RemoteRoomMailbox types could previously be managed only through EMS. Beginning in Microsoft Exchange Server 2019 CU14, both the "equipment" and ...

This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures (CVE) and security advisory:

Restart Outlook. If you still don’t see sync start working, restart Windows. After making the change the registry should appear similar to below not showing any TLS 1.3 keys. More Resources. Exchange Server TLS guidance Part 2: Enabling TLS 1.2 and Identifying Clients Not Using It - Microsoft Tech Community.

The Cumulative Update 3 package can be used to perform a new installation of Exchange Server 2013 or to upgrade an existing Exchange Server 2013 installation to Cumulative Update 3. You do not have to install Cumulative Update 1 or Cumulative Update 2 for Exchange Server 2013 when you install Cumulative Update 3.