Email sending delays for Sparkpost customers

Incident Report for Braze, Inc.

Resolved

Sparkpost has provided the following update:

"We have identified the issue; outbound message delivery has resumed but it will take time for all queued messages to be delivered... We will publish a post mortem for this incident at a later date."

At this point, we're considering this incident resolved, and in the future, their incident page is at https://status.sparkpost.com/incidents/bwl8dr6gwmts which can be referenced for a postmortem.
Posted Oct 28, 2021 - 16:48 EDT

Identified

Due to an incident with Sparkpost in the US, we are experiencing delays in processing affecting customers who deliver their email through Sparkpost. We've escalated the issue to the Sparkpost support team. Braze will continue to retry emails from Sparkpost with exponential backoff while Sparkpost works to resolve this issue. No data or messages will be lost as a result of this incident.

We will keep this page updated while Sparkpost updates on their side. Their incident page is at https://status.sparkpost.com/incidents/bwl8dr6gwmts which can be viewed for more real-time updates.
Posted Oct 28, 2021 - 14:03 EDT
This incident affected: US 01 Cluster (Outbound Messaging), US 02 Cluster (Outbound Messaging), US 03 Cluster (Outbound Messaging), US 06 Cluster (Outbound Messaging), US 05 Cluster (Outbound Messaging), and US 04 Cluster (Outbound Messaging).