Courier

Operational

All Systems Operational

Official status page (opens in a new tab)

Official status API · last read 4 min ago

Reported uptime
100%
From published incidents, 89 of 90 days covered
Published incidents
2
Active in the last 90 days
Days affected
3
Out of the last 90, any severity
Last incident
32 d ago
Started Oct 10, 00:25 UTC

Last 90 days

90 days agoToday
  • Operational
  • Maintenance
  • Degraded
  • Partial outage
  • Major outage
  • No data

CVEs, last two years

0

None matched in NVD.

Disclosed security incidents

0

None on record since January 2024.

Published root-cause analyses

1

Linked to the official write-ups.

Incident timeline

October 2026

  1. Queued Messages

    Degraded · Oct 10, 00:25 UTC

    15 min

    Official (opens in a new tab)

    Resolved

  2. Delayed Messages

    Degraded · Oct 9, 23:15 UTC

    37 min

    Official (opens in a new tab)

    Resolved

June 2026

  1. Send Pipeline Latency

    Degraded · Jun 18, 20:11 UTC

    1 h 57 min

    Official (opens in a new tab)

    Resolved

May 2026

  1. Slack Deliverability Issues

    Degraded · May 27, 23:06 UTC

    10 min

    Official (opens in a new tab)

    Resolved

February 2026

  1. Courier Multi Service Outage

    Major outage · Feb 2, 20:07 UTC

    3 h 7 min

    RCA published (opens in a new tab)

    Postmortem

January 2026

  1. Observability Degradation

    Degraded · Jan 29, 23:13 UTC

    Official (opens in a new tab)

    Resolved

  2. Courier Web App Performance

    Degraded · Jan 14, 21:47 UTC

    3 h 9 min

    Official (opens in a new tab)

    Resolved

October 2025

  1. All services impacted

    Major outage · Oct 20, 09:19 UTC

    52 min

    Official (opens in a new tab)

    Resolved

  2. Microsoft Teams Tenant Id Errors

    Degraded · Oct 17, 05:33 UTC

    29 min

    Official (opens in a new tab)

    Resolved

  3. Mailgun Message Delivery Latency

    Notice · Oct 13, 16:19 UTC

    Official (opens in a new tab)

    Resolved

  4. Message Delivery Latency

    Notice · Oct 8, 15:16 UTC

    Official (opens in a new tab)

    Resolved

July 2025

  1. Webapp HTTP Interaction Issues

    Degraded · Jul 7, 21:10 UTC

    18 min

    Official (opens in a new tab)

    Resolved

June 2025

  1. Cloudflare Outage Possible Okta SSO Impact

    Degraded · Jun 12, 19:30 UTC

    1 h 6 min

    Official (opens in a new tab)

    Resolved

  2. Message Delays on Send Pipeline

    Degraded · Jun 5, 18:51 UTC

    1 h 17 min

    Official (opens in a new tab)

    Resolved

May 2025

  1. EU Region – Notifications Stuck in “Queued” State

    Notice · May 16, 14:28 UTC

    6 h 34 min

    Official (opens in a new tab)

    Resolved

April 2025

  1. AWS SES Failures

    Degraded · Apr 30, 22:39 UTC

    6 h 20 min

    Official (opens in a new tab)

    Resolved

February 2025

  1. Internal Courier Error Issue

    Degraded · Feb 28, 16:48 UTC

    11 h 23 min

    Official (opens in a new tab)

    Resolved

  2. Segment Event Processing Slowdowns

    Degraded · Feb 21, 15:55 UTC

    1 h 16 min

    Official (opens in a new tab)

    Resolved

  3. Significant Notification Event Latency

    Degraded · Feb 18, 14:22 UTC

    25 min

    Official (opens in a new tab)

    Resolved

  4. Courier Send and Message Event Slowdown

    Degraded · Feb 13, 22:32 UTC

    36 min

    Official (opens in a new tab)

    Resolved

  5. Delay in Message Sends and Processing

    Degraded · Feb 11, 22:15 UTC

    53 min

    Official (opens in a new tab)

    Resolved

January 2025

  1. Automation Delay Processing Issues

    Degraded · Jan 11, 01:23 UTC

    3 h 2 min

    Official (opens in a new tab)

    Resolved

October 2024

  1. Delayed Message Processing

    Partial outage · Oct 24, 22:38 UTC

    4 h 10 min

    Official (opens in a new tab)

    Resolved

  2. Message Logs Delays

    Degraded · Oct 21, 15:56 UTC

    2 h 55 min

    Official (opens in a new tab)

    Resolved

  3. Courier Inbox FetchMessages Connectivity Issues

    Partial outage · Oct 10, 16:46 UTC

    9 h 47 min

    Official (opens in a new tab)

    Resolved

September 2024

  1. Send Pipeline and Event Status Slowdowns

    Degraded · Sep 6, 16:35 UTC

    23 min

    Official (opens in a new tab)

    Resolved

August 2024

  1. Delay in Message Processing

    Partial outage · Aug 19, 18:32 UTC

    3 h 3 min

    Official (opens in a new tab)

    Resolved

July 2024

  1. Automation Service Degrated

    Degraded · Jul 29, 22:03 UTC

    1 h 4 min

    Official (opens in a new tab)

    Resolved

  2. Delay in Event Statuses Processing

    Degraded · Jul 26, 15:29 UTC

    2 min

    Official (opens in a new tab)

    Resolved

  3. Automation Logs Delayed

    Degraded · Jul 9, 19:18 UTC

    3 d 3 h

    Official (opens in a new tab)

    Resolved

  4. Rendering Errors for Email Templates

    Partial outage · Jul 9, 03:00 UTC

    Official (opens in a new tab)

    Resolved

June 2024

  1. Automation Delays

    Degraded · Jun 27, 23:24 UTC

    1 h 16 min

    Official (opens in a new tab)

    Resolved

  2. AWS serviceUnavailable Outage

    Partial outage · Jun 26, 01:52 UTC

    1 h 21 min

    Official (opens in a new tab)

    Resolved

  3. Delayed Event Status

    Degraded · Jun 11, 15:36 UTC

    49 min

    Official (opens in a new tab)

    Resolved

May 2024

  1. Delay in Message Status Updates

    Notice · May 28, 16:34 UTC

    Official (opens in a new tab)

    Resolved

April 2024

  1. Segment Track events not firing automation workflows

    Degraded · Apr 3, 19:56 UTC

    1 d 4 h

    Official (opens in a new tab)

    Resolved

February 2024

  1. Delayed message delivery

    Degraded · Feb 19, 17:12 UTC

    8 h 38 min

    Official (opens in a new tab)

    Resolved

November 2023

  1. Message send delays

    Partial outage · Nov 2, 15:58 UTC

    11 h 1 min

    Official (opens in a new tab)

    Resolved

October 2023

  1. Degraded Segment Inbound request processing

    Degraded · Oct 17, 22:50 UTC

    1 h 35 min

    Official (opens in a new tab)

    Resolved

September 2023

  1. Outbound notifications are not being sent

    Notice · Sep 28, 16:25 UTC

    4 h 28 min

    Official (opens in a new tab)

    Resolved

  2. Message status updates are delayed

    Degraded · Sep 13, 19:51 UTC

    49 min

    Official (opens in a new tab)

    Resolved

July 2023

  1. Inbox messages degradation for versions lower than v2

    Partial outage · Jul 26, 22:04 UTC

    1 h 1 min

    Official (opens in a new tab)

    Resolved

  2. Delay in the messages sent out

    Partial outage · Jul 21, 18:02 UTC

    39 min

    Official (opens in a new tab)

    Resolved

June 2023

  1. An incident with Courier's hosting infrastructure has been identified and is impacting access to service.

    Partial outage · Jun 13, 19:13 UTC

    2 h 16 min

    Official (opens in a new tab)

    Resolved

May 2023

  1. Issue affecting sends

    Partial outage · May 11, 17:23 UTC

    2 h 40 min

    Official (opens in a new tab)

    Resolved

April 2023

  1. Message status updates are delayed

    Degraded · Apr 20, 22:09 UTC

    1 h 1 min

    Official (opens in a new tab)

    Resolved

March 2023

  1. Message Status Delays

    Partial outage · Mar 28, 22:22 UTC

    1 h 5 min

    Official (opens in a new tab)

    Resolved

February 2023

  1. Delayed Automation Execution

    Partial outage · Feb 23, 00:59 UTC

    1 h 19 min

    Official (opens in a new tab)

    Resolved

September 2022

  1. Timeouts impacting Courier Inbox and access to log data

    Degraded · Sep 27, 15:06 UTC

    1 h 3 min

    Official (opens in a new tab)

    Resolved

July 2022

  1. Message Send Delays for Legacy Segment to Send Message Integration

    Partial outage · Jul 25, 20:45 UTC

    8 h 31 min

    Official (opens in a new tab)

    Resolved