After a failure alert has been sent or triggered, you may find it helpful to send "Recovery" alerts once the problem has been corrected. 

This feature can be used to notify staff that the problem is resolved and immediate attention may not be required or this feature may be used with logging and historical record keeping via email alerts or customized add-in components.

In either case, each alert option provides an "Recovery Alert" flag that tells IPSentry to trigger the alert when a monitored machine returns to "OK" state out of a CRITICAL state.  This success alert is only triggered if a failure alert was previously triggered.

Within the alert configuration, simply check mark the option for "Trigger on Recovery"

You can specify how many cycles reporting OK must occur for the entry to be deemed 'recovered' by specifying a recovery count.