A proposal should be face to face. I would not like the idea of a proposal over the computer. I suppose if you have a webcam it might seem ok - but not to me.
How To Propose A Girl Online?
Type her an email that reads: Return to sender. Address unknown. Trying to find a way to ask my girl to marry me, but can't seem to make it to her home. Help! Will you marry me? And then your name. Good luck