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Outlook 16 security certificate error in Windows 10

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Outlook 16 security certificate error in Windows 10

I get an Internet Security Warming that "The server you are connected to is using a security certificate that cannot be verified.  The target principal name in incorrect" - Image attached. The Certificate Information (image attached) says it's "Issued to: mail.comcast.net". Shouldn't that be smtp.comcast.net? What to do?

 

. Outlook Security Warning.jpgCertificate for Comcast.jpg

Outlook Security Warning.jpg