Updated: 28 September 2026 · Applies to: cPanel & WHM 138 (WHM, root access)
cPanel can email account owners before they run out of bandwidth, so they can upgrade or reduce traffic in time.
Steps
- Log in to WHM as root (
https://your-server:2087). - Open Server Configuration › Tweak Settings.
- Type
bandwidthin the search box. - Turn on the setting that sends bandwidth limit notification emails to users.
- Tick the usage levels that should trigger a warning (the choices run from 70% to 99%), then click Save.
Users receive the notices at the contact address set in cPanel under Preferences › Contact Information.