(Cloud server with multiple domains) SSL Wildcard not works with subdomains ftp/mail/webmail

Hello,
I'd like to activate a Rapid SSL Wildcard for a specific domain on my cloud server (more domains/hosting hosted on the server) to encrypt the domain's activity on ftp, mail and webmail but it works only on generic subdomains (ex. mysubdomain.mydomain.com).

Sum up, it works on:
mydomain.com
www.mydomain.com
mygenericsubdomain1.mydomain.com
mygenericsubdomain2.mydomain.com
...

Not works on (view every time the default SSL certificate on Plesk):...

(Cloud server with multiple domains) SSL Wildcard not works with subdomains ftp/mail/webmail