FAQ 000164 – How to fix Schannel error 36874

This article applies to: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2,  Windows Server 2016 Exchange 2013, Exchange 2016 PROBLEM You experience connectivity issues in Outlook or 3rd party applications when connecting to your Exchange server. In Windows System Event Log on the Exchange server machine, you see

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