Mario: > Can anoyone tell me why this command is not executed (or it is > without success) from crontab, but works perfectly from the command > line ? > (yes, i've restarted crontab service) > > # clean up postmaster > 00 30 * * * root /usr/bin/find /var/qmail/maildirs/ > postmaster at telbit.pt/Maildir/new -type f -print0 | xargs -0 -n 50 rm If that is the actual crontab entry, then it is not valid, as the second column is the hour (there is no hour 30). You probably want this: 30 00 * * * root /usr/bin/find /var/qmail/maildirs/ postmaster at telbit.pt/Maildir/new -type f -print0 | xargs -0 -n 50 rm Alfred