[vox-tech] disposable email

[Nick Schmalenberger]

list,
I recently registered a personal domain name and am currently using
/etc/aliases to make disposable emails for registering with various
commercial websites. Does anybody know of a more automatic way to do
this that I can host my self? I am running exim 4.63 on debian etch, and
I have tried searching for "disposable email" debian with no results
besides commercial services.
Thanks.