# Telnyx: Email API messages rejected with gw_reject// injection_failed

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-10-12 08:31 UTC · Resolved: 2026-10-12 13:58 UTC · Duration: 5.5 h
- Updates: 3 · Affected components: Email API
- [Vendor status page: https://status.telnyx.com/incidents/01M4QKT11D4C6QGT35F50HQ4WP](https://status.telnyx.com/incidents/01M4QKT11D4C6QGT35F50HQ4WP)
- [Company: Telnyx](https://rewindex.com/company/telnyx.md)

## Timeline of updates

- **investigating** 2026-10-12 08:31 UTC: We are currently investigating this issue.
- **monitoring** 2026-10-12 09:36 UTC: Email sending through the Telnyx Email API was unavailable during the following periods:   • 9th October, approximately 21:10–22:05 UTC. • 10th October at approximately 22:15 UTC until 12th October at 09:25 UTC.   New send requests during these periods failed with gw\_reject// injection\_failed. Messages already queued before each interruption continued to be sent. Customers can retry messages that failed during the affected periods.   Service has been restored following a mitigation. We are monitoring stability and working on a permanent fix.
- **resolved** 2026-10-12 13:58 UTC: We have confirmed reports that Email API deliverability has now improved.  Email sending through the Telnyx Email API was unavailable during the following periods: - 9th October, approximately 21:10–22:05 UTC. - 10th October at approximately 22:15 UTC until 12th October at 09:25 UTC. A service restart by our engineers stabilised deliverability after 12th October at 09:25 UTC and resolved the issue.

## Rewindex changes for this incident

- 2026-10-12 08:31 UTC: [Major incident: Email API messages rejected with gw\_reject// injection\_failed](https://rewindex.com/change/if0d120104701d2.md)


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Canonical: https://rewindex.com/company/telnyx/incidents/01M4QKT11D4C6QGT35F50HQ4WP · Markdown: https://rewindex.com/company/telnyx/incidents/01M4QKT11D4C6QGT35F50HQ4WP.md · JSON: https://rewindex.com/api/v1/companies/telnyx/incidents/01M4QKT11D4C6QGT35F50HQ4WP · Generated 2026-10-19T21:15:30.853Z