# Microsoft 365 Delivery Issues

- Provider: [Greenhouse](https://down.guide/greenhouse)
- Level: confirmed
- Impact: Partial outage
- lasted 4h 59m
- started 2026-06-19 17:24 UTC
- Silo 1, Silo 2, Silo 3 +8
- id: DWN-95a6a1f28f
- Official page: https://stspg.io/gh2m9780hrnc

## Updates from Greenhouse
### 2026-06-19 17:24 UTC: investigating
We are currently investigating an issue where emails may not be sent for customers using custom SMTP routes with Microsoft 365.

### 2026-06-19 18:39 UTC: identified
The issue has been identified and a fix is being implemented.

### 2026-06-19 21:49 UTC: monitoring
A fix has been implemented and we are monitoring the results.

### 2026-06-19 22:23 UTC: monitoring
We are continuing to monitor for any further issues.

### 2026-06-19 22:24 UTC: resolved
This incident has been resolved.

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