# Braze: Email delivery issues

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-01-23 00:47 UTC · Resolved: 2026-01-23 03:42 UTC · Duration: 2.9 h
- Updates: 4 · Affected components: Email, Global Messaging Channels - Email
- [Vendor status page: https://stspg.io/zhbs1ygpx298](https://stspg.io/zhbs1ygpx298)
- [Company: Braze](https://rewindex.com/company/braze.md)

## Timeline of updates

- **investigating** 2026-01-23 00:47 UTC: Braze Engineers have identified elevated email bounce rates for customers sending email via SparkPost (Bird), starting around 17:35 ET. We are working with SparkPost Engineering who are aware and investigating the issue. We'll update in 30 minutes or when we have an update from Sparkpost.
- **investigating** 2026-01-23 02:00 UTC: Braze and Sparkpost engineers continue to investigate this issue.  While we have not fully identified the root cause, Sparkpost is reverting a code deployment from this afternoon that we believe could be correlated.  Our next update will come in an hour, or when the revert is complete.
- **monitoring** 2026-01-23 02:57 UTC: SparkPost's revert successfully resolved this issue, and we have seen bounce rates return to normal levels, and no instances of the specific error code as of 9:42 PM ET.  Our engineering teams will continue to monitor the situation to ensure the issue does not recur.
- **resolved** 2026-01-23 03:42 UTC: We have not seen any instances of the specific error code in an hour, since 9:42 PM ET.  This incident is considered resolved.


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Canonical: https://rewindex.com/company/braze/incidents/5x31z2wykxz2 · Markdown: https://rewindex.com/company/braze/incidents/5x31z2wykxz2.md · JSON: https://rewindex.com/api/v1/companies/braze/incidents/5x31z2wykxz2 · Generated 2026-10-18T09:55:54.893Z