Okay,
Here is what you could do:
Initialise a new variable array, which collects the mail addresses from those fields (to, from, cc).
Use the append to array variable action to fill it
Then, make a compose action, and use intersection(variables('tofromcc',variables('Exclude')) to see which items are in common of both arrays.
Then, use a filter array action. You will filter the array holding the to, from and cc, using: contains(outputs(ComposeIntersectionAction),item()) on the left, and false on the right.
The output of this will be an array of mail addresses that ARE in the 'to, from, cc' array, but NOT in the 'exclude' array. So you would want to use those for mailing, right?
You would probably need to tinker it a bit so that its accepted as a string of mail addresses sepperated by semicolumn in the way outlook wants it, but it should be fine
