I understood from the documentation supplied with
courierimap that netscape messenger, and to some
extent pine improperly implemented imap4rev1 and
therefore required the --enable-workarounds...
I did not enable the workarounds and I am attempting
to use MS Outlook 2000, and I consistently get the
error "Could not fetch new headers in the inbox... An
unknown error has occurred...."
Many people use Outlook without any problems.
Your problem is that you are not receiving an informative error message.
Without knowing exactly what the problem is, very little can be done on the