If you are using custom PHP scripts with the phpmail() function, contact forms, or plugins to send email messages, these will require the Sendmail service. Sendmail is best suited for smaller volumes of messages in a text-based format.
The good news is that Sendmail is enabled by default in hPanel! You can check it by opening Websites → Manage, searching for Mail Service Control on the left sidebar and clicking on it:
In case it is disabled, just click on the toggle to activate it and Update:
That’s it! Now you will be able to send messages using Web hosting emails 😊