/Var inode Insufficiency

This problem is generally caused /Var/spool/Postfix/maildrop/contains too many small files.

The temporary solution is to enter maildrop. Since the RM-RF system runs directly and the shell is disconnected, You need to execute ls | xargs Rm-RF to delete the small file.

Or the extreme solution is to stop the sendmail service and Postfix service.

Modify "/etc/crontab"

Replacing 'mailto = root' with 'mailto = "" 'does not succeed after modification. You need to restart the crond service.

You can also directly add mailto = "" from the beginning of crontab (crontab-E ""

/Var inode Insufficiency