Inside Core-Admin, with the Mail admin app, you configure a notification that is sent when mailboxes are overquota (admin notification) but also you can make the system to send a quota notification to the end user directly.
For that, open Mail Admin app and go to the quota notification options as shown in the following video:
However, in the case you want to change when are those quota notified and the frequency, you will have to:
- Update cron specification locateYOUTUBE URLd at the following file /etc/cron.d/crad-mail-quotas to adjust it to your needs. Remenber to just update those lines running the following command: “crad-mail-admin-mgr.pyc -k -f”
- To avoid having the file updated by the system due to a package upgrade, add immutable flag with the following command:
chattr +i /etc/cron/crad-mail-quotas