You want to send email messages, you need an email account.
Access to cPanel
Task completion: 5 minutes (max)
How to do ?
Connect to your cPanel
Select “Email Accounts”, under the Email group
Click on the “+Create” button on the right
Select the domain name, if you have many domains in your account
Enter your Username, account name, and Password
Choose the account quota in Megabytes
Leave the check in the box “Send a welcome email with instructions to set up a mail client”
Click on the “+Create” button
cPanel > Email >> Email Accounts >> +Create