- Plesk Onyx for Linux
How to secure webmail using Let's Encrypt in Plesk Onyx?
Perform the following instructions:
- Make sure that there is no wildcard domain like '*.example.com' or 'webmail.example.com' present on subscription in Plesk(Plesk > Domains) that is required to secure. Remove it if found.
- Obtain a new Let's Encrypt certificate in Domains > example.com > Let's Encrypt
Select Secure webmail on this domain and Include a "www"... if your domain has configured www prefix. Click Install
- It is also possible to secure webmail using existing Let's Encrypt certificate in Domains > example.com > SSL Certificates clicking Secure Webmail