I have an account with a shared email hosting service (e.g mailcheap) and the the webmail URL is hence https://xxx.mailcheap.co. This webmail has HTTPS.
Now I created CNAME records on my domain to point https://webmail.mydomain.com to https://xxx.mailcheap.co. However, when visiting the webmail through this route, the SSL is broken with a loud in-your-face warning i.e
"Your connection is not private Attackers might be trying to steal your information from...".
I take it because the SSL certificate on the email host's webmail does not cover mydomain.com.
Besides putting up a redirect to send webmail.mydomain.com to xxx.mailcheap.co, is there any other way to prevent that "Your connection is not Private" warning?