What are the exact settings to reiceve email with one touch?

I have it set to:

Service: ameritech.net
User name: correct
password correct
connection: wireless modem
set to isp ameritech number

but it still says error please check your username and password and try agian'

(ox1233) or error wrong dial in number or data service not enabled (ox1102)

I have double checked everthing cant figure it out...any sugesstions?