/var/spool/postfix/maildrop occupies a large space in Linux

Found/var/spool/postfix/maildrop This directory occupies more than 10G of space, the Internet to find the same problem, the reason is:

Since Linux executes cron, the output and warning information in cron execution scripts will be sent to the Cron owner in the form of a message, and the mail is not sent successfully because SendMail and postfix in the customer's environment are not working properly. All the small files accumulate under the Maildrop directory, and there is no mechanism to automatically clean up the conversion, so a year-long time, this directory has accumulated a large number of files. View the man cron information and know it will be sent to cron owner.

Then try to delete the contents of this directory, but the execution rm -rf ./* unexpectedly prompted the parameter list is too long, then use the following command to delete:

1 ls | Xargs RM -F

Removed by a pipeline.

/var/spool/postfix/maildrop occupies a large space in Linux