You should receive a subscription key after you purchase Forcepoint Email Security. If you did not enter the subscription key the first time you opened the Email Security module, enter it in the Settings > General > Subscription page. This subscription key can be entered in 1 appliance and is applied to all the appliances controlled by the Email Security module.

Mark the Block incoming email connections when subscription expires check box to block inbound email traffic when your subscription expires. Selecting this option also blocks inbound connections when your email protection system has not had a successful database download in 2 weeks. This function is disabled by default. A valid subscription includes a grace period of two weeks in which to renew your product licenses after the subscription expires. Alerts are sent daily during the grace period as a reminder that the subscription has expired.

Use the Subscription key field to enter a new key any time you receive one. If your subscription includes the Forcepoint Email Security Hybrid Module, you must register with the email hybrid service every time you enter a new subscription key to establish the connection and synchronize email protection system functions.