The QMAIL mail logs are stored under PLESK in our configuration (see syslog.conf in the /etc directory on the physical server for pointers to syslog managed logging locations)
cd into /usr/local/psa/var/log to view the mail log
This log also shows external parties attempting to relay through our server. (relaylock messages indicate someone attempting to relay through the server - they are not necessarily a problem unless people are getting in!
