Dear concern,
We tried to schedule warnquota to send mail daily 9 am using crontab of root user but we don't receive any mail but when we manually initiated warnquota, it send mail. Can anyone suggest me how i can schedule warnquota to send mail.
The most prominent error with cron is that people ignore it's using a very limited environment. Do you get any error messages? Post them.
In your cron script, use absolute paths and define any variables / symbols / aliases / environment used in that script.