Cseries :: Prevent C3 To Check For Email Automatically ?

I have a C3 and am using it for email. I have set up my hotmail and google mail account.

Every day at 9:00 my phone checks for email automatically That is no what I want. I only want it to check for messages when I ask for it. i have a plan with a fixed amount per day, regardless how much I use it. So the automatic check for email says to my provider "you can charge this phone for the day". And that is not what I want if I do not intend to use the phone for the rest of the day.

Where can I set that automatic checking for messages is turned off.