When you first start using AMP you will need to set up the mail application on your iPad to send emails through AMP. Here are some steps to make sure your email is configured in the best way possible.
Setting up your email address
1) Open the Settings application on your iPad
2) Tap Accounts & Passwords
3) Tap Add Account and follow the onscreen directions by logging in to your email
4) Check your account was set up correctly by confirming your email