- Select Security
- Select Security Settings

- Expand the Screening tree.

- Select Hijack Detection

- Check Accounts may send no more than X msgs in Y minutes.
- X = maximum allowed messages
- Y = number of minutes each account can submit X messages

- Check Freeze accounts when limit is reached to freeze these accounts.

- Select White list to configure accounts that are to be exempt from this feature.

- Select Save when finished adding/removing addresses to the White list.
- Click Ok
Additional Comments
**NOTE - Mailing lists are included in this feature. If you have mailings lists with more than X memebers, add them to the white list or consider increasing X number of messages.
