Email delivery delayed to some domains due to Proofpoint blocking

Resolved
Resolved
After 1 day, 4 hours, and 25 minutes

We believe the issue to be fully resolved now.

Identified
After 1 day and 43 minutes

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

Identified
After 5 hours and 1 minute

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.

Investigating
After 1 hour and 20 minutes

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.

Investigating

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

Began at: