spamassassin is deleting emails instead of rewriting header

Hello,

Everything is said in the title. I've dig a bit into
procmailrc but without success.

here is the content of the /etc/procmailrc file:

LOGFILE=/var/log/procmail.log
TRAP=/etc/webmin/virtual-server/procmail-logger.pl
:0wi
VIRTUALMIN=|/etc/webmin/virtual-server/lookup-domain.pl $LOGNAME
:0
* ?/usr/bin/test "$VIRTUALMIN" != ""
{
INCLUDERC=/etc/webmin/virtual-server/procmail/$VIRTUALMIN
}
ORGMAIL=/var/mail/$LOGNAME
DEFAULT=/var/mail/$LOGNAME
DROPPRIVS=yes
:0
$DEFAULT
:0:
* ^X-Spam-Status: Yes
$DEFAULT

So if you have any idea of what could be wrong, or what else
I should check, please tell me thanks.