Author here. FWIW, I wrote this because I couldn't find anything else out there that did it. I'd be more than happy to use something someone else has written t

Author here. FWIW, I wrote this because I couldn't find anything else out there that did it. I'd be more than happy to use something someone else has written that accomplishes this task. For more context, see the question I originally asked on StackOverflow: http://stackoverflow.com/questions/10391111/can-the-underlying-email-provider-be-determined-from-an-email-address http://stackoverflow.com/questions/10391111/can-the-underlyi...