KB5049233:AMSI integration body scanning support

Description of version 2 of the security update for Microsoft Exchange Server 2019 and 2016: November 27, 2024 (KB5049233)

Issues that are fixed in this update​​​​​​​

• Exchange Transport Rules and Data Loss Prevention rules don't work after installing November 2024 SU V1
• Journal report decryption doesn't decrypt attachment in journal mailbox
• Error after adding support for AES256-CBC–encrypted content in August 2023 SU
• Exchange can't decrypt IRM messages
• Server with PowerShell_ISE doesn't serialize when connecting to EMS
• Email sent through Pickup folder displays admin version
• CSR created by Exchange are signed with outdated Encryption algorithm
• OWA displays incorrect time zone for Amman
• Kazakhstan changes to single time zone in 2024
• Moderated messages are marked as expired after they are approved or rejected

Features introduced in this update

• MSIPC enabled by default in Exchange Server 2019 and 2016​​​​​​​
• ​​​​​​​AMSI integration body scanning support
• ECC certificate support improvements
• ​​​​​​​Non-RFC compliant P2 FROM header detection
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Known issues in this update

• Time zone exception occurs after installing Exchange Server November 2024 SU (Version 1 or Version 2)