Our carrier partner is observing an intermittent issue with DLR latency. During this time, the Intermittent delivery receipt may experience some delays.
We're actively working with our carrier partner to get this issue resolved as soon as possible.
If you have any questions, please feel free to reach out to our support team. Please click on the following link to submit a support ticket: https://support.plivo.com/support/tickets/new #171271