Error -199: A Filtering Error Occured / Trash the Outlook Express Cache

  • Operating System(s): MacOS
  • Operating System Version(s): 7.0.1, 7.1, 7.5, 7.5.1, 7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1, 8.0, 8.1, 8.1.1, 8.5, 8.5.1, 8.6, 9.0
  • Application: Microsoft Outlook Express
  • Application Version(s): 4.x

If you receive the error messag: "Error 199: A filtering error occured," it may be because the Outlook Express cache is corrupt. Resolve the error by trashing the Outlook Express cache.

Error Message

A filtering error occured -199
Cause

The Outlook Express cache is corrupt.
Solution

Trash the Outlook Express cache.
How to trash the Outlook Express Preferences
  1. Double-click the Macintosh HD icon.

  2. Double-click the Internet folder.

  3. Double-click the Internet Applications folder.

  4. Double-click the Outlook Express folder.

  5. Double-click the OE User(s) folder.

  6. Double-click the Main User folder.

  7. Click and hold the Cache folder in the Main User folder, then drag it and release it on the trash can.

  8. Close all windows.

    You have succesfully trashed the Outlook Express cache.