Our engineers have confirmed the issue with 406 error has been resolved and email sending was not impacted during this time. All services have been confirmed as operating normally.

Our engineers have monitored the fix and confirmed the issue has been resolved. All services are now operating normally at this time.

Our engineers have monitored the fix and confirmed the issue with sender authentication throwing 500 errors when attempting to access the validation endpoint has been resolved. All services are now operating normally at this time.

Our engineers have monitored the fix and confirmed the issue with Group Unsubscribes has been resolved. All services are now operating normally at this time.

Between 'July 28th 3:00 AM PST, 2025' and 'July 28th 8:30 AM PST, 2025', there was an issue where email deliveries were delayed where some mails that should have been delivered immediately, were finally delivered a few hours ago. A delay of approximately 5 hours could have been seen. Our engineering team identified that this incident only impacted a small number of emails. Root cause has been already mitigated and no new reports have been confirmed. While it impacted mail send temporarily, no new reports have occurred and we are certain the emails are now being delivered as expected.