Hi Jasmine, please read first:
http://jonaspasche.de/common-errors/bad-thread-start > Who know the reason and the solution? Could you tell me? Michael already gave you the reason why vpopmail created that "0" directory, but the solution to your problem is still pending. Please look into the qmail-send log to see what's happening when sending mail to that account. Post the according log snippet if you're unsure how to interpret. Jonas
