To apply this setting to a specificuser:
- Click Accounts
- Click Edit Account

- Double-click an account you wish to modify.

- Select Quotas
- Check the box next to This account must observe these quota settings
- In the Maximum messages sent per day field, enter a number value.
- Click Ok

To apply this setting to new users:
- Click Accounts
- Click Account Settings...

- Select Quotas under New Account Defaults.
- Check the box next to Enable quota restrictions
- In the Maximum messages sent per day field, enter a number value.
- Click Ok

To apply this setting to all current users:
- Click Accounts
- Click Account Settings...

- Select Quotas under New Account Defaults.
- Check the box next to Enable quota restrictions
- In the Maximum messages sent per day field, enter a number value.
- Click Apply to all accounts now

- Click Yes

- Click Ok

