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How to Manage the Messageware ISAPI Filter to Temporarily Disable Exchange Protocol Guard

This article applies to the following products:

Messageware Exchange Protocol Guard 2019

Messageware Exchange Protocol Guard 2016

Messageware Exchange Protocol Guard 2013

 

SUMMARY

The Messageware Exchange Protocol Guard (EPG) can be temporarily disabled by removing the Messageware ISAPI filter located in IIS of the external facing Exchange servers where the Messageware product is installed.

To restore the Messageware EPG functionality again, the Messageware ISAPI filter can be re-added to IIS on all external facing Exchange servers where the product is installed

Performing an IIS reset is recommended to clear & re-initialize the application pools on IIS after removal and addition of the ISAPI filter

 

RESOLUTION

 

Removing the Messageware ISAPI Filter for Exchange Protocol Guard

Open IIS Manger

  • Navigate to <Servername>\Sites\Default Web Site
  • In the IIS section (mid pane), select ISAPI Filters
  • Remove the entry Messageware

 

Adding the Messageware ISAPI Filter to Exchange Protocol Guard

Open IIS Manger

  • Navigate to <Servername>\Sites\Default Web Site
  • In the IIS section (mid pane), select ISAPI Filters
  • Select Add and create a new entry as show in screen capture