Courier Outage History
Uptime record, past incidents, and downtime history for Courier.
Checking current status...
90-Day Trend
Monthly Uptime
| Month | Uptime | Days Tracked | Days with Issues |
|---|---|---|---|
| July 2026 | 77.8% | 9 | 2 |
| June 2026 | 96.7% | 30 | 1 |
| May 2026 | 93.5% | 31 | 2 |
| April 2026 | 100% | 21 | 0 |
Uptime is calculated from daily worst-status snapshots. A day with any non-operational status counts as a day with issues.
Daily Status (Last 91 Days)
Apr 10
Today
Operational
Degraded
Partial Outage
Major Outage
Maintenance
No Data
Incident History
June 2026
Send Pipeline Latency
Started: Jun 18, 8:11 PM
monitoring
Messages are being processed while our pipeline continues to process enqueued messages.
Jun 18, 9:53 PM
identified
The team has identified that the most recent deployment was not the cause of the regression. The team is still working on identifying the root cause. Messages will not be dropped, and they will be processed once the fix is out.
Jun 18, 9:31 PM
identified
The rollback deploy will land in about 30 minutes.
Jun 18, 8:35 PM
identified
The team has identified a regression causing send requests to be stuck in a queued state. We have initiated a rollback to quickly resolve the issue. More updates to follow
Jun 18, 8:11 PM
May 2026
Slack Deliverability Issues
Started: May 27, 11:06 PM
monitoring
Slack has reported messaging, and app degredation on their platform that could be impacting deliverability of Slack messages. This is a downstream provider issue and can be monitored on Slack's statuspage: https://slack-status.com/
May 27, 11:06 PM