Autodiscover not available and mail cannot be sent with Exchange Online

Question

Good day!Today without any changes in K2 or Exchange Online we have had issues in ALL 'send e-mail' activity "SourceCode.Workflow.Shapes.EWS: Autodiscover not available and mail cannot be sent. Reconfigure K2 server with valid Exchange settings."Unfortunately, I don't have another O365 tenant or on-premise exchange server to test it with other settings. K2 Five (5.4) FP53.What can I do to fix or deeper investigate this issue?

KochevojRoman · Accepted Answer

Thanks for all! The issue was solved with KB manualhttps://community.nintex.com/t5/Technical-Issues/K2-and-TLS-1-2-Support/ta-p/124200

Ntsako · Answer

Hi  Please check out this article which deals with Exchange emails not workingExchange emails not working Or Try running the K2 Setup manager for configuring your Exchange Server

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