How to Whitelist a domain or email in Exchange 2010

If you have the Edge Transport Role installed on an Exchange 2010, mail may be rejected with the following error:
My.User@domain.com
mail.domain.com # #SMTP#

Don’t ask me why Microsoft has buried this feature! From what I can tell, the only way to whitelist in Exchange 2010 is through the Powershell – not the GUI. Thanks to Chris Caldwell for the fix.


Specific Address
1 - $list = (Get-ContentFilterConfig).BypassedSenders
2 - $list.add("new.mail@address.com")
3 - Set-ContentFilterConfig -BypassedSenders $list

Entire Domain
1 - $list = (Get-ContentFilterConfig).BypassedSenderDomains
2 - $list.add("domain.com")
3 - Set-ContentFilterConfig -BypassedSenderDomains $list

Verify
1 - Get-ContentFilterConfig

Information from http://danisrael.scekc.com/it/exchange-2010-whitelist.html