[courier-users] Little problem with clamcour

[fjar Uno al día]

Hello you all,
I've got courier 0.53.0 running succesfully on a Solaris 8 SPARC box. Recently I installed ClamAV and clamcour, but when I start the filter all messages are rejected and this error is in the log:

May  4 12:25:44 ret ClamCour[9391]: [ID 702911 mail.info] ClamAV database loaded
May  4 12:25:44 ret ClamCour[9391]: [ID 702911 mail.info] Listener: ClamCour filter active
May  4 12:25:44 ret ClamCour[9391]: [ID 702911 mail.info] Listener: Launched Inspector for scan
May  4 12:25:44 ret ClamCour[9391]: [ID 702911 mail.info] Inspector: Scan under progress...
May  4 12:25:44 ret courieresmtpd: [ID 702911 mail.error] submitclient: bad response from submit: /u01/courier/var/tmp/114673/D242118
May  4 12:25:44 ret courieresmtpd: [ID 702911 mail.error] error,relay=::ffff:192.168.101.15,from=< [EMAIL PROTECTED]>: /u01/courier/var/tmp/114673/D242118

The email client shows an error 432 and no message is delivered until I stop the filter.
I've been searching google and the maillist and found nothing connected to this. I think it's not a permission or libraries problem, as courier and clamav work perfectly.
Any help would be greatly appreciated.
Regards!