negate Blacklist Word validation

Hi everybody,

I am sure the is a quick way to achieve this but I somehow cannot do this. So I am asking your help...

I want to validate email field that for instance email field must ending with one of the specified values: @foo.com, @gooo.com and so on.....

somehow the Specific Value(s) check the whole word...

I am sure that somebody will know quick solution to this...

Thank you to all....