Go to Domains > example.com > Let’s Encrypt where example.com is the name of the desired domain.
Specify the email address that will be used for urgent notices and lost key recovery. By default, the email address of the subscription owner is used.
Specify if you want to include an alternative domain name for the domain and each selected alias, for example: www.example.com for example.com. We recommend that you select this check box.
Specify if you want to include webmail, for example: webmail.example.com. We recommend selecting this checkbox.
If there are domain aliases, select the ones that you want to include in the certificate.
Click Install to get and install the Let’s Encrypt certificate for the domain.
Select a required certificate for a website in Domains > example.com > Hosting Settings and click OK.
