Do not preserve zone information in file attachments

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP

This policy setting allows you to manage whether Windows marks file attachments with information about their zone of origin (such as restricted, Internet, intranet, local). This requires NTFS in order to function correctly, and will fail without notice on FAT32. By not preserving the zone information, Windows cannot make proper risk assessments. If you enable this policy setting, Windows does not mark file attachments with their zone information. If you disable this policy setting, Windows marks file attachments with their zone information. If you do not configure this policy setting, Windows marks file attachments with their zone information.

This policy has no additional user input fields.

• User
  Default risk level for file attachments

  At least Windows XP Professional with SP2
• User
  Hide mechanisms to remove zone information

  At least Windows XP Professional with SP2
• User
  Inclusion list for high risk file types

  At least Windows XP Professional with SP2
• User
  Inclusion list for low file types

  At least Windows XP Professional with SP2
• User
  Inclusion list for moderate risk file types

  At least Windows XP Professional with SP2
• User
  Notify antivirus programs when opening attachments

  At least Windows XP Professional with SP2
• User
  Trust logic for file attachments

  At least Windows XP Professional with SP2