Just a follow-up with another interesting situation : here's a maildirsize file that records 0 bytes out of 0 messages, yet it has many lines (which are supposed to be mail file sizes, 1 for received mail and -1 for deleted mail) :
root@messagerie[10.10.10.19] /var/vmail/backup.algerian-radio.dz/sec-drh # head maildirsize 5368709120S 0 0 5664 1 3713 1 6431 1 4012 1 5801 1 5277612 1 2667474 1 5520 1 root@messagerie[10.10.10.19] /var/vmail/backup.algerian-radio.dz/sec-drh #
And here's the output of du showing that the maildir is far from empty :
root@messagerie[10.10.10.19] /var/vmail/backup.algerian-radio.dz/sec-drh # du -h --max-depth=1 | sort -h 4.0K ./dovecot 4.0K ./tmp 8.0K ./courierimaphieracl 24K ./.Archive 2.9M ./new 471M ./cur 517M ./.Sent 991M . root@messagerie[10.10.10.19] /var/vmail/backup.algerian-radio.dz/sec-drh #
-- Yassine.