Correct Sender Whitelist format - ORF Forums

Im trying to setup a whitelist varible for a domian and all its subdomains and all possible emails addresses with in it, I know the associated risk involed, but Im unsure of the format to use

Here is what i have been trying to do
.*@([^.]+\.)*blackbaud\.com$
yet when I test with someting simple as it does not match

Any asstiance would be helpful

@Peter Karsai (ORF Team): It was in wildcard mode as Its my understanding that a standard wildcard expression is *
I did however make the adjustment and it works perfectly

Thank you