Using mailto: protocol We can specify the address, the subject, and the body of
a message but we cannot create an attachment.
I could send an email from the server but that will
require showing to the user all possible addresses to
send that mail to.
Instead I'd like to use client side because the user will
be able to specify an address to send to from his local
address book.
So, how can I open new mail form on the client (Browser) and add an attachment?

Thanks,
Mark