In fact the following is enough :
# dovecot-antispam plugin owner /tmp/** rwkl,
# dovecot-antispam pipes to sendmail /usr/sbin/sendmail PUx,
In fact the following is enough :
# dovecot-antispam plugin
owner /tmp/** rwkl,
# dovecot-antispam pipes to sendmail sbin/sendmail PUx,
/usr/