[ main function ]
  ㅇ Easy email sending and receiving
  ㅇ Quick view of attachments (Supports Hangul, Word, PowerPoint, Excel, PDF, image format)
       - File download function not provided by mobile service security guidelines
  Push notifications to confirm immediate receipt of email
  ㅇ Metro UI format, easy to use and easy to configure the main screen neatly


[authority]
  This app uses Device Manager permissions.
       - Used to automatically install and delete mail apps.


[Auto-install app]
   - The mail app will be installed automatically by the official mail installer.


[ Information Use ]
  1) The mobile officer integrated mail service is available only to individual member of the PC public official unified mail,
      http://mail.korea.kr After login, you have to apply for the service through 'Mobile' menu at the top of the screen.
  2) After transferring the official certificate on the PC to the mobile device by using the 'certificate transfer service'
      Just sign in on your mobile device.
  3) The integrated e-mail app for government officials includes mobile vaccine, security keypad, malicious app blocking program
       It will be installed automatically in the mail app.
  4) Mobile government official integrated mail service is available in 3G, LTE, LTE-A and Wi-Fi of mobile carrier.
  5) It is supported on Android O / S 4.0.4 or later, but there are some mobile device OS errors
      It is recommended to upgrade to the latest OS.
      (Some devices can only be supported on 4.4.2 or later)
  6) If there is update information of the official mail, please be sure to update it.
  7) In addition to the official mobile devices, other similar mobile devices can be installed, but may not work normally,
      If you want to install on a mobile device other than the official support mobile device, please contact the customer support center and install it.