I'd look at line 624 of main.c :) It's likely OS specific. You're running Ultrix, right?
Quoting Scott Grim ([EMAIL PROTECTED]): > My log is being spammed with the following error which just started today. I'm > wondering if anyone has a clue what it's indicative of. The POP server seems to be > working fine as I can check my mail via POP without any problems. > > popper[23153]: popper: Server: accept() error: (22) Invalid argument [main.c:624] > last message repeated 685 times > > Any ideas? >