If you, for example, go on vacation, it is possible to activate an autoresponder from the control panel, which sends a notification message of your choice to those who contact you via email.
Here's how to activate it:
Plesk
1. Log in to the server at https://login.domainkeskus.com/hosting
2. Log in.
3. Click on "Modify email account settings" and then navigate to "Autoresponder" on the page that opens.
(Alternative method: Email Accounts -> Click on the email address -> Autoresponder.)
NOTE: This is only a test domain, but the setup is done this way.
4. Click OK when you are satisfied. After that, it will be in effect.
cPanel
1. Log in to the server at https://login.domainkeskus.com/hosting
2. Log in.
3. Click on "Autoresponders", then click "Add Autoresponder":
Configure the settings as desired:
NOTE: This is only a test domain, but the setup is done this way.
4. Click "Create" at the bottom of the page when you're satisfied. After that, it will be in effect.