Outlook Error Message: “There is a Problem with the Proxy Server’s Security certificate”
This Error occurs when your Microsoft Outlook tries to connect to the server via RPC (Remote Procedure Call) Connection or Secure HTTP Connection. Then you might receive one of the following error messages: Error Message 1: “There is a problem with the proxy server’s security certificate. %s Outlook is unable to connect to this server. %s” Error Message 2: “There is a problem with the proxy server’s security certificate. %s The name on the security certificate is invalid or does not match the name of the site. Outlook is unable to connect to this server %s” Error Message 3: “There is a problem with the proxy server’s security certificate. %s The Security Certificate is not from a trusted certificate authority. Outlook is unable to connect to this server. %s” Error Message 4: There is a problem with the proxy server’s security certificate. %s The name on the security certificate is invalid or does not match the name of the target site outlook.office365.co...