When users start Outlook for the first time, a configuration wizard runs to configure an e-mail account. By default, users are prompted to enter a name, e-mail address, and password, and Outlook uses this information to automatically configure an e-mail account for them. If you clear the check box for this setting, the configuration wizard displays an option to allow users to choose the MAPI service type used in creating the account.
Note: the default value for this option is cleared when the Windows user locale is set to Chinese (PRC), Chinese (Taiwan), Chinese (Hong Kong), or Korean. This facilitates adding the Outlook Mobile Service, used for sending and receiving SMS/OMS messages on cellular phones.