Verify E-Mail adress before it is stored in the Adress Book?

Hi!
I have a special request, but maybe it is possible ?? I would like to store only the E-mail Addresses that real addresses (not made up ones like [email protected]) Is there a way to verify the addresses before they are stored in Flamingo’s address book? Or to check if the address really exists? I am afraid this is not possible but maybe there is a way to do this?

Thanks for your help!
Maria