We believe the issue to be fully resolved now.

We're still working to fully resolve the Proofpoint blocks and getting any deferred emails sent out.

Vast majority of email is being sent without delay, but still seeing some on certain domains. We're going to leave the incident open until these stop.

We're still seeing some delays to domains that use Proofpoint (notably, icloud.com and me.com), even though our IPs are clear on their site. We're anticipating is begins to clear as lists get updated.

Email to certain domains may be delayed. A portion of our IPs got temporarily blocked by Proofpoint. We're working on the issue now.