# Mailjet: Critical incident: Login issues with Mailjet Application and Intermittent Errors on REST API

**Summary:** _summary pending_
- Kind: Major incident · Label: critical (vendor)
- Changed: 2025-09-04 06:54 UTC · Detected: 2026-10-19 18:53 UTC
- [Source: https://stspg.io/mz0q71dxftw5](https://stspg.io/mz0q71dxftw5)
- [Company: Mailjet](https://rewindex.com/company/mailjet.md)
- Versions: before (none: first archived) → after incident\_version:744/ndflq172ph1k@a735a9284a0c
- Change 1 of 1 for this incident

Incident page (full timeline): [Login issues with Mailjet Application and Intermittent Errors on REST API](https://rewindex.com/company/mailjet/incidents/ndflq172ph1k.md)
## What changed

**1. Added: Title**

```diff
+ Login issues with Mailjet Application and Intermittent Errors on REST API
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-09-04 06:54 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-09-04 12:30 UTC
```

**6. Added: Affected components**

```diff
+ Event API, Form Builder, Mailjet App, Mailjet Embedded, REST API
```

**7. Added: Update** (investigating) · 2025-09-04 06:54 UTC

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

**8. Added: Update** (investigating) · 2025-09-04 08:12 UTC

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

**9. Added: Update** (investigating) · 2025-09-04 08:34 UTC

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

**10. Added: Update** (identified) · 2025-09-04 08:55 UTC

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

**11. Added: Update** (identified) · 2025-09-04 10:06 UTC

```diff
+ We are continuing to work on a fix for this issue.
```

**12. Added: Update** (identified) · 2025-09-04 10:33 UTC

```diff
+ We are continuing to work on a fix for this issue.
```

**13. Added: Update** (monitoring) · 2025-09-04 11:11 UTC

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

**14. Added: Update** (resolved) · 2025-09-04 12:30 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-09-04 06:54 UTC | Critical incident: Login issues with Mailjet Application and Intermittent Errors on REST API (this change) | critical |

All Mailjet changes: [timeline](https://rewindex.com/company/mailjet/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/i829e0d1057d952 · Markdown: https://rewindex.com/change/i829e0d1057d952.md · JSON: https://rewindex.com/api/v1/changes/i829e0d1057d952 · Generated 2026-10-20T01:30:21.829Z