I came across this post on lifehacker today (original post and solution here), which talks about a method of retrieving files from a remote computer through e-mail. Pretty archaic, I know, but again, it is a very simple method and works behind all the firewalls and stuff 
. But, the catch is that it is only for mac’s. Thought of creating something similar for the PC and mashed together some code during lunch time at office to make our dear old outlook remote-file-sending-capable.