The /usr/spool/uucp/.Corrupt directory contains copies of files that could not be processed by the uucp program. For example, if a file is not in the correct form for transfer, the uucp program places a copy of that file in the .Corrupt directory for later handling by the system manager.
This directory is rarely used. The files in it are removed periodically by the uudemon.cleanu(4) command, a shell procedure.
Daemons: uucico(8), uuxqt(1)
Commands: uudemon.cleanu(4) delim off