I have a website and emails through the same hosting provider which I manage through cpanel.

At the moment I am using zeroSSL to secure my website ([www.example.com](http://www.example.com)), however, this does not support my other subdomains such as cpanel, webdisk, autodescover, webmail and mail.mydomainname.

I tried creating another certificate for mail.example.com but in cpanel it appears you cannot have different certificates for different subdomains.

So the question is do I need a wildcard SSL certificate or is there a better way to secure my emails?