To Switch Mail Service ON Or OFF on A Subscription Plesk Panel(Linux)
When a domain is added within Plesk or cPanel, a service is automatically created. If a mail service is active for the receiving domain, any messages sent between (SCI) ServerCake India hosted services will attempt to deliver locally. If you plan on having the email hosted through a separate service such as (Google Apps & etc) this can cause delivery errors. For the reason, you have the ability to disable the mail at the domain level as shown below.
Follow the Steps:
1. Log into the Plesk Control Panel for your domain.
2. Click on the Mail tab at the top.
3. Click on Change Settings.
4. Under Mail settings, check or uncheck the box to activate or de-activate service for your domain. Then click OK at the bottom to save.
To do the same function on Plesk panel on Windows. Please follow the link: https://www.servercake.blog/switch-mail-service-in-windows/.