Microsoft: Turn Junk Mail Filters Off via Exchange 2010

There are two recommended methods for you to turn off the junk mail filtering via Exchange 2010.
<< Method 1 >>
1. Open the EMC on the Edge Transport server.
2. In the console tree, click Edge Transport.
3. In the work pane, click the Anti-spam tab, and then select Content Filtering.
4. In the action pane, click Enable or Disable as appropriate.

<< Method 2 >>
1. Open the Exchange Powershell
2. Type in Set-ContentFilterConfig -Enabled $false

* Note: 
When you disable content filtering, the underlying Content Filter agent is still enabled. To disable the Content Filter agent, run the command: Disable-TransportAgent "Content Filter Agent"

* Note:
To verify that you have successfully enabled or disabled content filtering, do the following:
Run the following command:
Get-ContentFilterConfig | Format-List Enabled

and verify the value of the Enabled property that's displayed.