Next time you receive an email forwarded to lots of others,
take note how many email addresses have been broadcast around
the net by such "forward-me" letters. If you want your email
address scattered publicly forever, you're welcome to do so, but it is
a nasty thing for you to be broadcasting MINE or anybody else's.
If you want to send a letter to lots of people,
the polite and professional method is to put their addresses into the
BCC (blind copy) field which ensures the privacy of their email address.
You'll need something in the To: field. Send it to yourself, with everybody else BCC'd.