I've received an inbound delivery email alert from Plivo. What should I do?

This email is triggered when Plivo’s message delivery monitoring systems observe a significant drop in your inbound message delivery rate.

A drop in inbound message delivery rate may be caused by any of the following reasons:

1. An incorrect message URL configured in your Plivo Application
2. An unresponsive message URL
3. The message URL takes more than five seconds to respond to an HTTP request