Procmail and cyrus

Hello all, I have a problem with my procmail recipes and cyrus. As read on a AFP548's article, my procmailrc file look like this : DELIVERTO="/usr/bin/cyrus/bin/deliver" USERINBOX="$DELIVERTO -e -a ${SENDER} -m ${EXTENSION} ${USER}" LOGFILE=/var/log/procmail.log VERBOSE=YES LOGABSTRACT=all SHELL=/bin/sh :0H:spam_lock * ^X-Bogosity: Yes, tests=bogofilter | $USERINBOX/bogospam :0H:macentreprise * ^To:.MACENTERPRISE@LISTSERV\.CUNY\.EDU | $USERINBOX/MacEntreprise On main.cf mailbox_command and mailbox_transport are set to procmail. When I look at the procmail log file, I found an error (65). procmail: Match on "^Subject:.*SPAM" procmail: Locking "spam_lock" procmail: Executing "/usr/bin/cyrus/bin/deliver,-e,-a,-m,jacques/bogospam" procmail: Non-zero exitcode (65) from "/usr/bin/cyrus/bin/deliver" procmail: Assigning "LASTFOLDER=/usr/bin/cyrus/bin/deliver -e -a -m jacques/bogospam" procmail: Unlocking "spam_lock" Look in error header file (I don't remember the file), error code 65 mean that the folder is not a mailbox. All the mailboxes have been made with Mail.app and have the three cyrus files. Who can help me to solve this issue ? Thanks in advance, Jacques