app_control_h app_control;
char *mail_address = "mail_name@mail_server";
char *subject = "Tutorial message";
char *message = "Tutorial message content.";

app_control_create(&app_control);
app_control_set_operation(app_control, APP_CONTROL_OPERATION_COMPOSE);
app_control_set_app_id(app_control, "email-composer-efl");
app_control_add_extra_data(app_control, APP_CONTROL_DATA_TEXT, message);
app_control_add_extra_data(app_control, APP_CONTROL_DATA_TO, mail_address);
app_control_add_extra_data(app_control, APP_CONTROL_DATA_SUBJECT, subject);
if (app_control_send_launch_request(app_control, NULL, NULL) == APP_CONTROL_ERROR_NONE)
{
    dlog_print(DLOG_INFO, LOG_TAG, "Succeeded to launch e-mail app.");
}
else
{
dlog_print(DLOG_INFO, LOG_TAG, "Failed to launch e-mail app.");
}
app_control_destroy(app_control);