This is an old thread (but still the best search match for the error
message).
Several other people pointed at NFS, so it got me to look.
Indeed what appear to happen (for me at least) was
The folders being imapped, some of them were on a NFSv3 mount. The NFS
server had been shutdown.
I hoping this is an RTFM ... and somebody can point me at the correct
'FM' :-)
I've just spent a while setting my new Debian , allways-on box in what I
suspect is a generally useful configuration.
I have fetchmail(1) collect mail from many mailboxes via pop3.
I store these mails in different
