How to Add Domain/Sender White list in Exchange 2010

​To view what currently is in the White List for senders, open the Exchange Management Power shell:

1) – For white listed individual e-mail address type:
(Get-ContentFilterConfig).ByPassedSenders

2- For white listed domains type:
(Get-ContentFilterConfig).ByPassedSenderDomains

To add an individual e-mail address or domain to the white list:
To whitelist a domain e.g. solvitns.com.au you would type the following:

$WhiteDomain = (Get-ContentFilterConfig).BypassedSenderDomains

$WhiteDomain.add(“solvitns.com.au”)

Set-ContentFilterConfig -BypassedSenderDomains $WhiteDomain

 

To White list a sender e.g. support@solvitns.com.au you would type the following:

$WhiteSender = (Get-ContentFilterConfig).BypassedSenders

$WhiteSender.add(“support@solvitns.com.au”)

Set-ContentFilterConfig -BypassedSenders $WhiteSender

To check if you have correctly added the whitelist exception re run the first 2 commands and check their results to confirm domain or email exception has been added