At 3:37 PM -0400 9/28/01, Forrest Aldrich wrote: > We're seeing a LOT of these types of errors lately: > > Sep 28 14:50:18 machine popper[39052]: I/O error flushing output to > client someuser at nas-3-198.boston.domain.net [216.67.3.198]: > Operation not permitted (1) > > enough to believe there is some problem going on. I know for a > fact that this isn't isolated to just an Outlook (Lookout!) client, > some are using Eudora. > > What could be causing this? The machine is on a 100mbit link, but > our office accesses it via a T1 (which isn't that congested). > > > _F
You can try playing with the chunky-writes setting and see if that helps. If not, I'd suggest Qpopper tracing or packet sniffing.