* * * * * Heisenbugs That weird bug that shows up after a few hours [1] is proving hard to find. I've been running the greylist daemon [2] for over a day now on my development server and have yet to reproduce the issue. But it does relate to the checkpoint feature, because since I disabled that particular feature on the production server, it hasn't stop working. Very strange indeed. [1] gopher://gopher.conman.org/0Phlog:2007/09/22.1 [2] gopher://gopher.conman.org/0Phlog:2007/08/16.1 Email Sean Conner at sean@conman.org .