OCPP Settings
Heartbeat Interval:
The time interval in minutes for how often a charge point
should request the current time from SteVe.
Expiration:
The amount of time in hours for how long a charge point should cache
the authorization info of an idTag in its local white list, if an expiry date is not explicitly set.
The value 0 disables this functionality (i.e. no expiry date will be set).

Mail Notification Setting Specify the recipients of the notifications by entering one e-mail address per line
Enable Notifications?:
Protocol:
Host:
Port:
From:
User name:
Password:
Recipients:
Notify when...