Nov 15, 2018, 1:04 - 11:31 PMResolved after 10 hoursAffected: API, SMTP (sending)
All email addresses affected by the incorrect bounce classifications have now been reactivated, and sending can be resumed to those addresses.
The bounce issue has been resolved, and incorrect bounces shouldn't be happening any more. We will reactivate all affected addresses over the next few hours, and post another update once it's done.
We continue to see issues with bounces to GoDaddy-hosted domains due to DNS issues at GoDaddy. We are monitoring closely and are doing what we can to help resolve the issue.
We are investigating an issue with some valid recipients generating hard bounces with a reason of "unable to route: no mail hosts for domain." The issue affects recipients on domains hosted at GoDaddy.