> Hi all, > > is possible to turn off sending of failure notices. I get lot of spam > from fake addresses and my mail server works in big lag because of that.
Bounce invalid addresses during SMTP dialog. Read QLDAPINSTALL and /var/qmail/control/qmail-smtpd.rules. RCPTCHECK, RETURNMXCHECK and SANITYCHECK options If delays in email delivery are acceptable - investigate greylisting options. -- Tomas
