Ok, e-mail really is annoying -- EVERY time I make a change on the server upgrade-wise, hotmail blacklists us again... and I have to rebuild the damned postfix SSL certificates... Mails were bouncing because the old certs were invalidated by the update (stupid), and again hotmail has blacklisted us so once more I have to fill out the stupid malfing form that assumes we're mailing list spam-hats.
-- edit --
Ok, once again we should be whitelisted with the various mail providers.