# Mailgun: Major incident: Intermittent API Errors in US Region

**Summary:** Mailgun reported a major degradation involving intermittent API errors in the US Region, affecting API and Email Services - API. It started at 2026-03-13 11:29 UTC and lasted 1 h 20 min, resolving at 2026-03-13 12:49 UTC after a fix was implemented; no cause was stated. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-03-13 11:29 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/byglplcqsw8w](https://stspg.io/byglplcqsw8w)
- [Company: Mailgun](https://rewindex.com/company/mailgun.md)
- Versions: before (none: first archived) → after incident\_version:251/qgmhrqywmj0f@528641e90668
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Intermittent API Errors in US Region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-03-13 11:29 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-03-13 12:49 UTC
```

**6. Added: Affected components**

```diff
+ API, Email Services - API
```

**7. Added: Update** (investigating) · 2026-03-13 11:29 UTC

```diff
+ We are currently investigating this issue.
```

**8. Added: Update** (investigating) · 2026-03-13 11:56 UTC

```diff
+ We are continuing to investigate this issue.
```

**9. Added: Update** (identified) · 2026-03-13 12:19 UTC

```diff
+ The issue has been identified and a fix is being implemented.
```

**10. Added: Update** (monitoring) · 2026-03-13 12:33 UTC

```diff
+ A fix has been implemented and we are monitoring the results.
```

**11. Added: Update** (resolved) · 2026-03-13 12:49 UTC

```diff
+ The incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-03-13 11:29 UTC | Major incident: Intermittent API Errors in US Region (this change) | degradation |

All Mailgun changes: [timeline](https://rewindex.com/company/mailgun/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


---
Canonical: https://rewindex.com/change/ic0a845b2639012 · Markdown: https://rewindex.com/change/ic0a845b2639012.md · JSON: https://rewindex.com/api/v1/changes/ic0a845b2639012 · Generated 2026-10-18T02:31:38.185Z