Maintenance has concluded

We have finished implementing some mitigation measures. The message latency has normalized.

This incident has been resolved. Inbound message delivery and outbound message timeouts have returned to normal, and all systems are operating as expected. Thank you for your patience.

Post-mortem

Impact window: ~10:08 AM – 12:30 PM CT, May 31, 2026

Summary: Starting around 10:08 AM CT, some customers experienced delays and failures when sending messages and receiving inbound message events, along with elevated timeouts or 5xx API responses. Message sending and inbound delivery were restored by ~11:25 AM CT; we declared full resolution at ~12:30 PM CT after confirming stability.

Cause: A component in our message-processing pipeline became overloaded during a peak in traffic and stopped processing correctly, interrupting message delivery for a subset of traffic.

Resolution: We rebalanced and restored the affected component, then verified end-to-end recovery. The platform is fully operational.

We have confirmed that all lines affected have been restored and are processing messages again. Closing the incident and will continue to monitor. Please reach out if you suspect there are further issues with any of your lines.

We believe that we have fully recovered, but are continuing to dig deeper and determine what the ultimate root cause of this outage was and will be implementing mitigations to keep this from happening in the future.

We have located the root cause and all affected lines should be operating normally again.

Maintenance has completed

All v2 API queues have processed any backlog they had and latency/error rates are back to normal.

We're scheduling Linq Maintenance for an upcoming emergency maintenance window scheduled by our upstream fiber provider, that may affect Linq services. The maintenance is expected to take place over a 60 minute period, though it could extend throughout the full window depending on the nature of the work. Linq has failover configurations in place for our internet providers. We do not anticipate a full service outage; however, you may experience increased network latencies during this window while traffic is rerouted across redundant paths.

Maintenance Window

UTC: April 1, 2026 - 04:00 AM to 07:00 AM UTC

Central: March 31, 2026 - 11:00 PM to 2:00 AM CDT

Pacific: March 31, 2026 - 09:00 PM to Midnight PDT

Our team will be monitoring the situation throughout the maintenance window and is prepared to respond to any issues that arise.

If you have any questions or concerns, please don't hesitate to reach out. We'll follow up with a post-maintenance confirmation once the fiber provider gives us the all clear.