> Can someone tell me what this error message means, and whether it is a > permanent error? > > > --- The transcript of the session follows --- > >bellmail: cannot append to /usr/spool/mail/ozmen > >bellmail: cannot create /root/dead.letter > >bellmail: error closing file: A file descriptor does not refer to an open > >file. > >550 <[log in to unmask]>... Insufficient permission It's a problem with the other system. It will probably persist until the system administrator there fixes the problem.