Name: Your Name (What ever you want)
Email: Your email address is your username
Password: Your orange.lu account password
Description: Orange Luxembourg
Click Next Button
Hostname: mail.orange.lu
Username: Your email address is your username
Password: Your orange.lu account password
Hostname: mail.orange.lu
Username: Your email address is your username
Password: Your orange.lu account password
Click Save Button
Use SSL: None
Authentication: Password
Server Port: 143
Use SSL: None
Authentication: Password
Server Port: 25
You can login orange.lu and Signup for orange.lu new account on your iPhone from here.