I had the same problem with uw imap-server V 4.7 and netscape-client and
was able to track down the error.
If I subscribe new folders, I can see the file .mailboxlist. I
subscribed and unsubscribed it later. In this moment, the inetd on the
linux-server spawns imapd-processes at a high rate. inetd on linux has a
limit of 40 identical processes per 60 seconds as default. If the limit
is reached, inetd will stop for 10 minutes to spawn the imapd.
I changed to uw version 4.7b and the problem disappered.I changed also
the default of 40 processes to 100 in /etc/inetd.conf, but our server is
very busy and very powerfull - a limit of 40 was to small.
For the uw imap-server exist a patch, who makes all .files invisible to
> cyrus imap-server with pwcheck on linux
> from time to time (when doing heavy operation with pegasus) I get the
> following error in the syslog:
> Apr 28 12:29:49 server inetd: imap/tcp server failing (looping),
> service terminated
> then the imapserver is not reachable for about 10-20 minutes !!
> imapd is started with inetd and pwcheck is running from inittab
> restarting pwcheck manually seems to solve the problem at the moment, but
> a few hours/days later I get the same problem.
> is this a cyrusproblem and how to solve it ?
> or is it a pegasusproblem (I wont care about, cause well change to
> outlook ...)