Is it possible to disable the Let’s Encrypt certificate auto-renewal on a Plesk server?

Question

Is it possible to disable the Let's Encrypt certificate auto-renewal on a Plesk server?

Answer

It's not possible to disable the Let's Encrypt certificate auto-renewal for the particular domain.

To disable the Let's Encrypt certificate renewal for all domains:

1. Log into Plesk.

2. Go to Tools & Settings > Scheduled Tasks.

3. Find the Extension letsencrypt and/or Extension sslit tasks keep-secured.php and click on the green dot to disable the task:
   

   Note: this will also disable the automatic certificate renewal for the Plesk login page and mail server.