Has your mail server been hit with a spam bot? Or maybe you’ve just made the catastrophic mistake of deleting directories in the qmail queue directory
All current messages will be removed from the mail queue if you are following the steps below and cannot be restored
Stop the qmail service
service qmail stop (or) /etc/init.d/qmail stop
Then delete the folders under qmail queue and create the queue folder structure
cd /var/qmail/queue
rm -rf info intd local mess remote todo
mkdir messfor i in `seq 0 22`; do mkdir -p mess/$i done
cp -r mess info
cp -r mess intd
cp -r mess local
cp -r mess remote
cp -r mess todo
chmod -R 750 mess todo
chmod -R qmailq:qmail mess todo intd
chmod -R 700 info intd local remote
chmod -R qmails:qmail info local remote
Start the qmail service
service qmail start (or) /etc/init.d/qmail start