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ShowSCL_PF for MS Exchange 2003

Updated: 3-September-2007
See also ShowSCL for Exchange 2003 application
Review these articles:
Microsoft Exchange Intelligent Message Filter Deployment Guide
Using Microsoft Exchange Intelligent Message Filter

How to view Spam Confidence Level rating assigned by Exchange Intelligent Message Filter?

There is James Webster's solution to show the rating information for each mail as a column in Outlook: Exposing SCL (Spam Confidence Level) in Outlook. This solution allows you to configure Outlook to expose the SCL property to the end user. Unfortunately, the approach that has been taken by James has at least two disadvantages:
- it is Outlook-centric, so it should be installed on each user's workstation
- it can not work on Public Folders

ShowSCL_PF for Exchange 2003 application allows you to place the message SCL score to the message category, so that you can easily find, sort, filter, or group the items by the SCL value.

The application is an Exchange store event sink.



On your Exchange 2003 Server computer:

  1. Create a new mail-enabled public folder named SCLTESTPF.
    You should create this public folder for test purposes only, so you can delete it after you satisfy yourself with the fact that the application is actually works.
  2. Select (or create) a mailbox-enabled user account that is a member of the local Administrators, Domain Admins, Domain Users and Exchange Domain Servers security groups. That account must have full permissions on the Public Folder store. Open ESM (Exchange System Manager) and drill down to the Public Folder store. Now open the properties and select the Security tab. Add your account and allow full control.
    See also this MS article: Exchange 2000 Permissions Required to Configure an Event Sink.
  3. Log on as that user.
  4. Create C:\Program Files\ShowSCL_PF\ directory.
  5. Download archive file to C:\Program Files\ShowSCL_PF\ directory and extract all files.
  6. Run C:\Program Files\ShowSCL_PF\ShowSCL_PF_Setup.exe
  7. Click "Install" button in "COM+ object" frame.
    ShowSCL_PF installation - picture 1
  8. Check SCLTESTPF folder in the list in "Per-folder registration" frame. Click "Change" button.
    ShowSCL_PF installation - picture 2
  9. Make sure that that "SCL=<SCL value>" is selected in the "SCL value display format" frame.
  10. Click "Exit" button.


  1. Using Outlook, navigate to SCLTESTPF public folder. Create a message addressed to SCLTESTPF and send it. Make sure the message you just sent is delivered to SCLTESTPF folder.
  2. Open View menu.
    In Outlook 2003 select Arrange By > Current View > Customize Current View...
    ShowSCL_PF testing - picture 1 (Outlook 2003)
    In Outlook 2007 select Current View > Customize Current View...
    ShowSCL_PF testing - picture 1 (Outlook 2007)
  3. Click Fields... button. Select All mail fields from the list on bottom left corner of the form. Select Categories field in the Available fields: list and press Add button.
    ShowSCL_PF testing - picture 2
    Click OK button to close Show Fields window. Click OK button to close View Summary window.
  4. Look at Categories column. Note that "SCL=-1" value is placed there.

    ShowSCL_PF testing - picture 3

I have tested ShowSCL_PF with Outlook 2003 SP2, Outlook 2007 and Exchange 2003 SP2.


  1. Start C:\Program Files\ShowSCL_PF\ShowSCL_PF_Setup.exe
  2. Uncheck SCLTESTPF folder in the list in "Per-folder registration" frame. Click "Change" button.
  3. Click "Uninstall" button in "COM+ object" frame.
  4. Press Exit button.

This application is freeware. Unfortunately, we cannot provide support services to users of freeware IvaSoft products.

If you want to create a global rule to move/delete the messages based on their SCL rate, have a look at our SpamMoverPF application.

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