Name: Your Name (What ever you want)
Email: Your username
Password: Your i-zoom.net account password
Description:
Click Next Button
Hostname: mail.i-zoom.net
Username: Your username
Password: Your i-zoom.net account password
Hostname: smtp.i-zoom.net
Username: Your email address is your username
Password: Your i-zoom.net account password
Click Save Button
Use SSL: None
Authentication: Password
Server Port: 110
Use SSL: None
Authentication: Password
Server Port: 25
You can login i-zoom.net and Signup for i-zoom.net new account on your iPhone from here.