# Twilio: Multiple delivery failures when sending emails to Microsoft or MS based recipients

> Twilio maintenance “Multiple delivery failures when sending emails to Microsoft or MS based recipients” on 2026-09-04: impact maintenance (vendor’s label), 7.3 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/v0xwp70fbfrf
Last updated: 2026-09-04T18:56:00Z

- Impact (vendor’s label): maintenance (maintenance)
- Status: resolved
- Started: 2026-09-04 11:40 UTC · Resolved: 2026-09-04 18:56 UTC · Duration: 7.3 h
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/v0xwp70fbfrf](https://status.twilio.com/incidents/v0xwp70fbfrf)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2026-09-04 18:56 UTC: Our engineers have monitored the issue and confirmed the issue with email deliveries to Microsoft has recovered to normal levels. All services are now operating normally at this time.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Maintenance posted by Twilio, started 2026-09-04 11:40 UTC, resolved after 7.3 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/v0xwp70fbfrf
- Citation: Twilio, “Multiple delivery failures when sending emails to Microsoft or MS based recipients” (2026-09-04 11:40 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/v0xwp70fbfrf (CC BY 4.0).
- Markdown link: `[Twilio: Multiple delivery failures when sending emails to Microsoft or MS based recipients (2026-09-04)](https://rewindex.com/company/twilio/incidents/v0xwp70fbfrf)`


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Canonical: https://rewindex.com/company/twilio/incidents/v0xwp70fbfrf · Markdown: https://rewindex.com/company/twilio/incidents/v0xwp70fbfrf.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/v0xwp70fbfrf · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:24:17.636Z