Click on the Email app on your home screen.

Click "+ Email Account" to open the new email account popup.

You can either create a "brainmail.com" account, or click the link to go to your Domains page, where you can add a custom domain, or buy a new one.

Once you add a first and last name and select a domain name, click "Create Account".

Use the email and password that gets generated to log in to brainmail.com.

That's it - Happy sending!

Bonus: if you'd like, you can click the "Admin" button on the left inside your email account, and then click "Client Setup" to get instructions to add the email account to your device.

Extra bonus: If you used a custom domain name, be sure to follow the domain setup instructions in the "..." menu on the right to ensure you can properly send and receive emails.