With Let's Encrypt you can generate a free SSL certificate for your whole server: SMTP, POP3, IMAP, FTP, the webserver(s) and DirectAdmin is covered by this. First, you need to have Let's Encrypt enabled. Secondly, this only works for the server hostname.
- Navigate to the directory:
- Request the certificate:
sh letsencrypt request servername.yourwebhoster.eu
- Make sure that the following services are restarted, if installed:
- DirectAdmin will take care of regenerating the Let's Encrypt certificate.