Spam filters are pretty effective these days, I don't think this is an insurmountable problem. Maybe something like sending a verification email with a link to

Spam filters are pretty effective these days, I don't think this is an insurmountable problem. Maybe something like sending a verification email with a link to a captcha. Not too much of a nuisance to do for one application, but unsustainable for submitting a million applications. Edit: Alternately, an even lazier idea: Randomly award the grant from the pool of applicants rejected by other institutions.