http://biteproof.com/
A brief look at How to set up email on Amazon Kindle Fire (IMAP)
1. Select the email app.
2. Enter your email address and click “Advanced Setup”
here You might need to select “add account” from the left hand menu if you have an existing account setup.
3. Select your Account type.
4. Enter the required information and click “Next”
5. Your Account will now set up
6. When you get a "Setup Complete!" message, click "GO TO INBOX" to start using your email.
Setting up your IMAP email on your Amazon Kindle Fire Tablet