Message Central – Notification emails sent for old probills

Did a customer get a Message Central notification for a probill that is old and was delivered long ago?

If a customer has a subscription to Message Central for deliveries for all probills, this can happen.

As you can see in the example below, this probill is from 2016, and there was a recent delivery status update in 2018.

Thus, since the customer has a Message Central subscription they will get a notification that the probill was delivered.