Name: Your Name (What ever you want)
Email: Your username
Password: Your cmail.com.ar account password
Description: Claro Argentina
Click Next Button
Hostname: pop.ctimovil.com.ar
Username: Your username
Password: Your cmail.com.ar account password
Hostname: smtp.ctimovil.com.ar
Username: Your username
Password: Your cmail.com.ar account password
Click Save Button
Use SSL: None
Authentication: Password
Server Port: 110
Use SSL: None
Authentication: Password
Server Port: 25
You can login cmail.com.ar and Signup for cmail.com.ar new account on your iPhone from here.