exchange server 2016 cu19 end of life

WHEN 151217614 THEN Exchange 2016 CU19 May21 patched against ProxyShell. Recommend also updating with recent July.

Client Connectivity In An Exchange 2016 Coexistence Environment With Exchange 2010 Microsoft Tech Community

Recommend also updating with recent July Patch WHEN 150149723 THEN Exchange 2013 CU23 Jul21 patched against ProxyShell WHEN 150149718 THEN Exchange 2013 CU23 May21 patched against ProxyShell.

Exchange February 2019 Updates Fixes For Ews Security Flaw

Released March 2021 Exchange Server Security Updates Page 2 Microsoft Tech Community

Released March 2021 Exchange Server Security Updates Page 2 Microsoft Tech Community

Mainstream Support For Exchange 2016 Ends In October 2020

End Of Mainstream Support For Microsoft Exchange Server 2016

Security Update For Exchange Server 2016 Cu18 Kb4581424 Installation Error Microsoft Tech Community

End Of Mainstream Support For Exchange 2016 2wtech 2wtech

Released April 2021 Exchange Server Security Updates Page 3 Microsoft Tech Community

Migrating To Exchange Server 2016

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