routing mail connections from external machine to external mail server via openbsd router

[edacquay@shaw.ca]

I've just gotten into residence at university, and it seems that for me to be able to access my email from my email address I was using while living at home, I need to be on the ISP's network.  As a result, I wanted to use my router back home as a link between myself and the mail server so that I can access my mail from the University of Waterloo.  Any help with this would be greatly appreciated.  I don't mind doing some research, but I have absolutely no idea what to look for.

Thanks

Eric Dacquay