Exchange 2010 and Content Filtering

I'm having some issues figuring out exactly how to handle whitelisting multiple domains in  the Spam Filter.  I have been going into the management shell and using the Set-ContentFilterConfig –ByPassedSenderDomains command.  

That works fine for adding one domain but I'm having trouble maintaining a list of domains.   I can enter multiple domains and see them listed but it seems like the filter is only applying the whitelist to the first domain in the list.  

Am I doing something completely wrong here or is there a better way to maintain a whitelist?  Lets say I want to whitelist the following:

What is the best way to do this?
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Simon Butler (Sembee)ConsultantCommented:
The list is replaced each time.
Therefore if you want to add a domain you have to take the complete list and add the domain to it.

Most sites where whitelisting is used will have the script maintained somewhere, so you can just add the domain to the list then rerun the script. Without a script of some kind it becomes very difficult to maintain.


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