i have the following log after upgrade last calamd in centos 6.x
Insecure dependency in exec while running with -T switch at /etc/webmin/virtual-server/lookup-domain.pl line 19.
procmail: Program failure (255) of "/etc/webmin/virtual-server/lookup-domain.pl"
Hmm, you may need to double-check the permissions on procmail and procmail-wrapper, as well as ensure that Postfix is using procmail-wrapper when delivering email.
What is the output of these commands:
ls -l /usr/bin/procmail
ls -l /usr/bin/procmail-wrapper
postconf -n | grep mailbox_command