Well, that was pretty boneheaded of me.
Since the mailspool in question had accumulated several thousand messages, 97% of which were spam, I just said "ah, screw it" and deleted all of them. So, if you've sent me email at a gweep.net account (any server) or my twilightsun.com address since October or so, I didn't see it. (If you sent it to a gmail account, you're fine.)
It's fixed now, so any address you have for me in your address books should be functional again.