Has anyone made an emailing system before?
That doesn't seem very practical, at least not in the traditional sense (i.e., make a evented keyboard that takes like 5 minutes to type a message).
Bendodoom (I think I spelt his name right) and I have made 'answering machines' with VCE playerlastmsg before, and there's been plenty of similar functioned event systems before.
All I advise is that if you try to make an email system, make it easy to use :)