# Mailgun: 554 errors to Microsoft services

> Mailgun status incident “554 errors to Microsoft services” on 2016-05-12: impact none (vendor’s label), 2.7 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/mailgun/incidents/lg6g8bbvmgf5
Last updated: 2016-05-12T19:38:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2016-05-12 16:55 UTC · Resolved: 2016-05-12 19:38 UTC · Duration: 2.7 h
- Updates: 1
- [Vendor status page: https://status.mailgun.com/incidents/lg6g8bbvmgf5](https://status.mailgun.com/incidents/lg6g8bbvmgf5)
- [Company: Mailgun](https://rewindex.com/company/mailgun.md)

## Timeline of updates

- **resolved** 2016-05-12 19:38 UTC: Microsoft looks to have implemented a fix and we have noticed that delivery to Microsoft domains has returned to normal.

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

## Cite this

Status incident (vendor impact label: none) posted by Mailgun, started 2016-05-12 16:55 UTC, resolved after 2.7 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/mailgun/incidents/lg6g8bbvmgf5
- Citation: Mailgun, “554 errors to Microsoft services” (2016-05-12 16:55 UTC). Archived by Rewindex: https://rewindex.com/company/mailgun/incidents/lg6g8bbvmgf5 (CC BY 4.0).
- Markdown link: `[Mailgun: 554 errors to Microsoft services (2016-05-12)](https://rewindex.com/company/mailgun/incidents/lg6g8bbvmgf5)`


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Canonical: https://rewindex.com/company/mailgun/incidents/lg6g8bbvmgf5 · Markdown: https://rewindex.com/company/mailgun/incidents/lg6g8bbvmgf5.md · JSON: https://rewindex.com/api/v1/companies/mailgun/incidents/lg6g8bbvmgf5 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:57:20.732Z