Companies / Braze / incidents

Braze: Email delivery issues

Affected components: EmailGlobal Messaging Channels - Email

Timeline of updates

1. investigating2026-01-23 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.

2. investigating2026-01-23 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.

3. monitoring2026-01-23 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.

4. resolved2026-01-23 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.

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Braze profile · Recent Braze incidents · Markdown · JSON