We encountered the error with our Outlook anywhere clients: "There is a problem with the proxy servers security certificate, the name on the security certificate is invalid or does not match the name of the target site mail.domain.com Outlook is unable to connect to proxy server. (Error Code 10)." Is there a way to edit the existing certificate so it would match the name of our new target site? Adding another domain to the cert. The old target is mailsrv.domain.com but we must implement the new target. We are using internal CA. Thanks guys.

Hello, No, you have to generate a new certificate which includes the name of the Outlook Anywhere proxy server name. Additionally, you need to also include autodiscover name autodiscover.domain.com in it. Thanks, Simon