Answer
This article describes how to disable GFI MailEssentials from scanning emails. This is done by unregistering the IIS / Exchange sinks in the case of Microsoft IIS / Microsoft Exchange 2000 / 2003 or by disabling the Transport agents in the case of Microsoft Exchange 2007 or later. Note this is normally required only for troubleshooting purposes.
Before editing the sinks/agents, you will want to go into the MailEssentials switchboard first and disable the scanning options in the General Settings > Settings > Scanning Manager > un-check the selected items and hit Apply. If this process is successful, you should not need to run the .cmd files.
Microsoft Exchange 2000 / 2003 & IIS SMTP
To disable GFI MailEssentials from scanning all email, you need to un-register the GFI MailEssentials event sinks from Microsoft IIS / Microsoft Exchange 2000 / 2003. Run the following cmd file to un-register the GFI MailEssentials event sinks:
<\GFI\MailEssentials\Antispam\stop_snks.cmd>
To register the GFI MailEssentials event sinks again, you can run the following cmd file:
<\GFI\MailEssentials\Antispam\start_snks.cmd>
When executing any of the above cmd files, the IIS Admin service is stopped and restarted. Before doing so, the cmd will inform you of the dependant services which are being stopped. You would need to take note of these services, as these would need to be restarted manually.
Microsoft Exchange 2007 or later
To disable GFI MailEssentials on Microsoft Exchange 2007, you need to run the following cmd file to remove the GFI MailEssentials Agents from Microsoft Exchange 2007:
<\GFI\MailEssentials\Antispam\Disable_Agents.cmd>
Note: Running the above will automatically restart the GFI Microsoft Exchange Transport service.
To re-enable the GFI MailEssentials agents, run the following cmd file:
<\GFI\MailEssentials\Antispam\Enable_Agents.cmd>