Dear Ubuntu Planet,

I'm on a quest to remove spam from my inbox. I've been killing off GNU mailman lists where the -owners stuff was feeding me spam. Most of my spam now seems to be relayed from @ubuntu.com. Does anyone know if there's a similar solution to what @debian.org has where I can ask it to reply with a bounce saying "Here's my real email address, use that instead pls"?

I suppose I could just set my default email address in LP to something that will do it instead, but I'd rather avoid the WrathOfElmo(tm)