Linkedin - email validator - any tool out there?

Hi all

Is there a tool out there that can help me cross reference a bunch of email addresses and see if they have a Linked in account?

e.g, I got 500 email account and now want to check how many of them has a linkedin account

Or perhaps some one can code one for me from linkedin API - will pay off course as long as it is reasonable.

Thanks

Hey
you can try out linkedin dominator software
It has the feature you are looking for
add me on skype by the name facedominatorsupport for the trial of the software