Find "Access Point Names"
Press Applications.
Press Settings.
Press Wireless and network.
Press Mobile networks.
Press Access Point Names.
Delete data connection
Press Vodafone Mail.
Press the Menu key.
Press Delete APN.
Press the Home key to return to standby mode.
Find "Email"
Press Applications.
Press Email.
Delete email account
Press the name of the active account at the top of the display.
Press and hold the required email account until a pop-up menu is displayed.
Press Delete account.
Press Delete to confirm.
Exit
Press the Home key to return to standby mode.