RoadRunner was unable to accept a regular volume of mail and they were throttling messages. This affects deliverability of our mail when a message is throttled for a full 72 hours, and will be added to either the Bounce suppression list or Block non-suppression list. The techs were in communication with them at an industry level and believe this has been resolved.
Hopefully all RoadRunner clients will start getting emails delivered shortly!
Hopefully all RoadRunner clients will start getting emails delivered shortly!