1 Visit improvmx.com and enter your domain and in-use email
2 Now, Go to your website Cpanel and Search mx record and add this records
3 After that, search SPF and add this
- v=spf1 include:spf.improvmx.com ~all
4 Now, after you succesfully setup anything you can see a button named test click that to test your business email, if you succesfuly receive the email you can now use it everywhere.