Name: Your Name (What ever you want)
Email: Your email address is your username
Password: Your atlantic.net account password
Description:
Click Next Button
Hostname: mail.atlantic.net
Username: Your email address is your username
Password: Your atlantic.net account password
Hostname: smtp.atlantic.net
Username: Your email address is your username
Password: Your atlantic.net account password
Click Save Button
Use SSL: None
Authentication: Password
Server Port: 110
Use SSL: None
Authentication: Password
Server Port: 587
You can login atlantic.net and Signup for atlantic.net new account on your iPhone from here.