heres an easier way..
type in the email addres as:
(whatever you want here)@dodgeit.com
then go to dodgeit.com and fill in the only field with:
(whatever you want here)
and click check mail..
then give him the link..
Dodgeit is basically a fake inbox, it sjust open to the public, so anyone will get that link, but you shoudl get a termination link to delete the file after your friend has it.. I use dodgeit for a bunch of stuff.....