The name on the security certificate is invalid or does not match

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Outlook 2013 - There is a problem with the proxy server's security certificate - Mark Gossa

Certificate Validation –

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Why do I get Common name mismatch error in my browser? - SSL Certificates

Security Alert - Root Certificate expired and invalid name. [Windows XP] [Closed] - Kaspersky Internet Security - Kaspersky Support Forum

Security Alert for issued certificate (the name on the security certificate is invalid - Server - Let's Encrypt Community Support

The name on the security certificate in invalid or does not match the name of the site

Name Mismatch Error In Web Browser

The name on the security certificate is invalid or does not match the name of the site error in Outlook in a dedicated or ITAR Office 365 environment - Microsoft Support

Strange certificate pop up : r/Office365

Outlook Certificate Error

entitlement.diagnostics.office.com certificate validity issue : r/Office365

Explained: security certificates