Resolved
This incident has now been resolved and the service is now fully operational.
Monitoring
A fix has been implemented, and we're currently monitoring the service.
Identified
We're still working on a fix to all transactional emails and mitigating the ongoing spam issue we're dealing with. For the time being, account invites are degraded and are still not sending.
Identified
We've identified the source of the issue with our transactional email provider (Postmark) and are implementing a fix.
Investigating
We're investigating reports that transactional emails from the Knock dashboard are not being delivered. We're actively working with our mail provider on a fix.