KB5037224: Fixed: We can't open this document

Hotfix update for Exchange Server 2019 and 2016: April 23, 2024 (KB5037224)

Features introduced in this update

• Elliptic Curve Cryptography certificates support in Exchange Server 2016 and 2019
• Hybrid Modern Authentication support for OWA and ECP in Exchange Server 2019 CU14

Issues that are fixed in this update

• We can't open this document" error in OWA after installing March 2024 SU
• Search error in Outlook cached mode after installing March 2024 SU
• OwaDeepTestProbe and EacBackEndLogonProbe fail after installing March 2024 SU
• Edit permissions option in the ECP can't be edited
• Outlook doesn't display unread message icon after installing Exchange Server March 2024 SU
• My Templates add-in doesn't work after installing Exchange Server March 2024 SU
• Download domains not working after installing the March 2024 SU