You can get RSS feeds for mailing lists here. Cf. The Amphetadesk help guide: “If you get a lot of email from mailing lists hosted at Mail-Archive.com, you’re in luck. With over 2500 different lists available, simply find the archive page for the discussion in question and add maillist.rdf to the URL. The result is an RSS feed for AmphetaDesk.”
A very comprehensive set of links to resources on Learning Objects from Kate Britt.