# Greenhouse: Microsoft 365 Delivery Issues

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-06-19 17:24 UTC · Resolved: 2026-06-19 22:24 UTC · Duration: 5.0 h
- Updates: 5 · Affected components: Greenhouse Recruiting - Silo 8, Silo 8, Greenhouse Recruiting - Silo 2, Silo 2, Greenhouse Recruiting - Silo 7, Silo 7, Greenhouse Recruiting - Silo 1, Silo 1, Greenhouse Recruiting - Silo 9, Silo 9, Greenhouse Recruiting - Silo 3, Silo 3, Greenhouse Recruiting - Silo 101, Silo 101, Greenhouse Recruiting - Silo 5, Silo 5, Greenhouse Recruiting - Silo 4, Silo 4, Greenhouse Recruiting - Silo 6, Silo 6, Greenhouse Recruiting - Silo 201, Silo 201
- [Vendor status page: https://stspg.io/gh2m9780hrnc](https://stspg.io/gh2m9780hrnc)
- [Company: Greenhouse](https://rewindex.com/company/greenhouse.md)

## Summary

Greenhouse reported a major incident in which emails might not be sent for customers using custom SMTP routes with Microsoft 365. It started at 2026-06-19 17:24 UTC and resolved at 2026-06-19 22:24 UTC, lasting 4 h 59 min. A fix was implemented by 06-19 21:49 UTC. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2026-06-19 17:24 UTC: We are currently investigating an issue where emails may not be sent for customers using custom SMTP routes with Microsoft 365.
- **identified** 2026-06-19 18:39 UTC: The issue has been identified and a fix is being implemented.
- **monitoring** 2026-06-19 21:49 UTC: A fix has been implemented and we are monitoring the results.
- **monitoring** 2026-06-19 22:23 UTC: We are continuing to monitor for any further issues.
- **resolved** 2026-06-19 22:24 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2026-06-19 17:24 UTC: [Major incident: Microsoft 365 Delivery Issues](https://rewindex.com/change/i7577177ee2b39d.md)


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Canonical: https://rewindex.com/company/greenhouse/incidents/jdsd1tcdcrbl · Markdown: https://rewindex.com/company/greenhouse/incidents/jdsd1tcdcrbl.md · JSON: https://rewindex.com/api/v1/companies/greenhouse/incidents/jdsd1tcdcrbl · Generated 2026-10-18T12:33:33.892Z