Courier

courier.com (opens in new tab)Status page (opens in new tab)

Status page says: Operational since Oct 19
Last 90 days: 2 incidents
Rewrites caught: None so far
Next deprecation: None announced

Courier incidents per day, last 90 days

Select a day to jump to its incidents below.

How Courier reports incidents

Not enough incidents to compare Courier with other vendors yet: a vendor needs 20 incidents in a year and 10 with full update detail (Courier has 8 and 50).

Provisional. Built nightly from every archived version of each incident, last on Oct 19. Compare all vendors

Dependencies

What Courier relies on and who relies on Courier, as observed in status-page incidents: who they blame, where they say they run, and who fails at the same time. Observed, not verified.

Courier depends on

Provider	Evidence	Signal
AWS	blamed in 7 incidents; integration affected in 1; together in 6 outage events “…All services impacted The incident has been resolved An issue with our service provider, AWS, has impacted all Courier services. The engineering team is working on resolution. Service has been restore…” incident	Strong
Cloudflare	blamed in 1 incident “…Cloudflare Outage Possible Okta SSO Impact WorkOS systems are back to normal. Cloudflare has reported an outage that will impact SSO features provided by WorkOS. Customers with Okta SSO might experien…” incident	Likely
GitHub	blamed in 1 incident “…rs and 42 minutes in the Ireland region. Recovery was prolonged by a concurrent outage at GitHub Actions, our CI/CD provider, which prevented our standard automated rollback. Our team identified the r…” incident	Likely
Microsoft Teams	integration affected in 1 “…Microsoft Teams Tenant Id Errors Release is in production and Microsoft Teams messages are passing successfully. Release is in production and Microsoft Teams messages are passing successfully. The Cou…” incident	Weak

Outage events: AWS us-east-1, Oct 20, 2025, Google Cloud, Jun 12, 2025 (timing), AWS, Feb 13, 2025, AWS, Jun 13, 2023 (timing), AWS, Mar 9, 2022, AWS us-east-1, Dec 7, 2021, AWS, Nov 25, 2020 (timing).

Strong: same company, or blamed in two separate outages. Likely: blamed once, or named as hosting and failing together. Weak: listed as a subprocessor, integration-only, or failing together repeatedly without being named.

Changes and edits

Incidents Courier rewrote or removed, and notable changes to the pages we watch.

~~Struck in red~~ is what Courier removed. Blue is what they added.

Monday, February 2

1 incident change

Critical
20:07Critical incident
Courier Multi Service Outage

Monday, October 20, 2025

1 incident change

Critical
09:19Critical incident
All services impacted Event

Thursday, October 24, 2024

1 incident change

Major
22:38Major incident
Delayed Message Processing

Thursday, October 10, 2024

1 incident change

Major
16:46Major incident
Courier Inbox FetchMessages Connectivity Issues

Monday, August 19, 2024

1 incident change

Major
18:32Major incident
Delay in Message Processing

Tuesday, July 9, 2024

1 incident change

Major
03:00Major incident
Rendering Errors for Email Templates

Wednesday, June 26, 2024

1 incident change

Major
01:52Major incident
AWS serviceUnavailable Outage

Thursday, November 2, 2023

1 incident change

Major
15:58Major incident
Message send delays

Wednesday, July 26, 2023

1 incident change

Major
22:04Major incident
Inbox messages degradation for versions lower than v2

Friday, July 21, 2023

1 incident change

Major
18:02Major incident
Delay in the messages sent out

Full Courier change history

Pricing and pages we watch

Page	Versions	Last changed	Last checked	History
Privacy policy (opens in new tab)	1	2026-10-19	2026-10-19	No changes yet
Subprocessors (opens in new tab)partial	1		2026-10-19	No changes yet
Terms of service (opens in new tab)	1	2026-10-19	2026-10-19	No changes yet