Update - Some customers are continuing to report delivery issues for messages destined to Office 365 addresses: junk foldering and elevated click rates. We continue to work with Microsoft on this matter - they have suggested that our customers reach out to Microsoft Office 365 Support if emails unexpectedly land in junk/quarantine. We will provide updates via this Incident.
Feb 23, 2024 - 17:52 EST
Update - Some customers are continuing to report delivery issues for messages destined to Office 365 addresses (junk foldering and elevated click rates). We continue to work with Microsoft on this matter. We will provide updates via this Incident when we receive updates from Microsoft.
Feb 21, 2024 - 17:30 EST
Update - Some customers are continuing to report delivery issues for messages destined to Office 365 addresses. We continue to work with Microsoft on this matter. We will provide updates via this Incident when we receive updates from Microsoft.
Feb 20, 2024 - 18:28 EST
Update - Some customers are continuing to report delivery issues for messages destined to Office 365 addresses. We continue to work with Microsoft on this matter. We will provide updates via this Incident when we receive updates from Microsoft.
Feb 16, 2024 - 16:25 EST
Update - Some customers continue to report (1) messages are going to the junk/spam folder, and, (2) an elevated number of opens and clicks from Office 365 addresses. We are continuing to engage with Microsoft. We will provide updates via this Incident when we receive updates from Microsoft; the next update will be no later than 5 pm EST Friday.
Feb 15, 2024 - 17:03 EST
Identified - Some customers continue to report (1) messages are going to the junk/spam folder, and, (2) an elevated number of opens and clicks from Office 365 addresses. We continue to engage with Microsoft and we have escalated this issue. We will provide updates via this Incident when we receive updates from Microsoft; the next update will be no later than 6 pm EST Thursday.
Feb 15, 2024 - 11:37 EST
SparkPost Application (WebUI) Operational
90 days ago
99.79 % uptime
Today
SparkPost Application - USA ? Operational
90 days ago
99.59 % uptime
Today
SparkPost Application - EUROPE Operational
90 days ago
100.0 % uptime
Today
SMTP Delivery (Outbound Message Delivery) Operational
90 days ago
99.99 % uptime
Today
SMTP Delivery - USA Operational
90 days ago
99.99 % uptime
Today
SMTP Delivery - EUROPE Operational
90 days ago
100.0 % uptime
Today
Transmissions API Operational
90 days ago
100.0 % uptime
Today
Transmissions API - USA Operational
90 days ago
100.0 % uptime
Today
Transmissions API - EUROPE Operational
90 days ago
100.0 % uptime
Today
SMTP API Operational
90 days ago
100.0 % uptime
Today
SMTP API - USA Operational
90 days ago
100.0 % uptime
Today
SMTP API - EUROPE Operational
90 days ago
100.0 % uptime
Today
Metrics API Operational
90 days ago
100.0 % uptime
Today
Metrics API - USA Operational
90 days ago
100.0 % uptime
Today
Metrics API - EUROPE Operational
90 days ago
100.0 % uptime
Today
Events API ? Operational
90 days ago
99.79 % uptime
Today
Events API - USA Operational
90 days ago
99.59 % uptime
Today
Events API - EUROPE Operational
90 days ago
100.0 % uptime
Today
Relay Webhooks Delivery Service Operational
90 days ago
100.0 % uptime
Today
Relay Webhooks - USA Operational
90 days ago
100.0 % uptime
Today
Relay Webhooks - EUROPE Operational
90 days ago
100.0 % uptime
Today
Sending Domains API Operational
90 days ago
100.0 % uptime
Today
Sending Domains API - USA Operational
90 days ago
100.0 % uptime
Today
Sending Domains API - EUROPE Operational
90 days ago
100.0 % uptime
Today
Suppression List API Operational
90 days ago
100.0 % uptime
Today
Suppression List API - USA Operational
90 days ago
100.0 % uptime
Today
Suppression List API - EUROPE Operational
90 days ago
100.0 % uptime
Today
Event Webhook Delivery Service Operational
90 days ago
99.79 % uptime
Today
Event Webhooks - USA Operational
90 days ago
99.59 % uptime
Today
Event Webhooks - EUROPE Operational
90 days ago
100.0 % uptime
Today
Engagement Tracking Service Operational
90 days ago
100.0 % uptime
Today
Engagement Tracking Service (redirecting clicks and serving opens) - USA Operational
90 days ago
100.0 % uptime
Today
Engagement Tracking Service (redirecting clicks and serving opens) - EUROPE Operational
90 days ago
100.0 % uptime
Today
Mailbox Provider Service Interruption ? Degraded Performance
Blocklist API Operational
90 days ago
100.0 % uptime
Today
Blocklist API - USA Operational
90 days ago
100.0 % uptime
Today
Blocklist API - EUROPE Operational
90 days ago
100.0 % uptime
Today
Alerts API Operational
90 days ago
100.0 % uptime
Today
Alerts API - USA Operational
90 days ago
100.0 % uptime
Today
Alerts API - EUROPE Operational
90 days ago
100.0 % uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.
Scheduled Maintenance
On February 27 will be dropping support for TLSv1.1 and lower versions of TLS protocols for incoming connections to the Engagement Tracker that services opens and clicks. All incoming connections for clicks and opens using TLS 1.2 and TLS 1.3 protocol versions (99.99% of clicks and opens use these current protocols) will continue to work without interruption during the maintenance window.
Posted on Feb 22, 2024 - 13:50 EST
Engagement Tracker Security Update - EU Feb 27, 2024 07:00-08:00 EST
On February 27 will be dropping support for TLSv1.1 and lower versions of TLS protocols for incoming connections to the Engagement Tracker that services opens and clicks. All incoming connections for clicks and opens using TLS 1.2 and TLS 1.3 protocol versions (99.99% of clicks and opens use these current protocols) will continue to work without interruption during the maintenance window.
Posted on Feb 22, 2024 - 13:49 EST
Past Incidents
Feb 25, 2024

No incidents reported today.

Feb 24, 2024
Resolved - The replays have finished running. All historical engagement data is fully caught up.
Feb 24, 13:25 EST
Update - The replays continue to run nominally. We estimate that the replays will complete within the next 4-5 hours.
Feb 24, 10:58 EST
Update - The replays continue to run nominally. We anticipate historical engagement data will be fully caught up in the next 12-14 hours. We are intentionally throttling the replay to ensure we do not overwhelm customers' webhook endpoints. While we cannot guarantee ordering, we are generally sending the data from oldest to most recent.

The next update will be provided at the completion of the replay or early if needed.

Feb 24, 00:11 EST
Update - The replays continue to run nominally. To optimize the performance of the replay we are going to slightly change the manner in which we are sending the replayed data. Starting around 11PM ET we will slow the total overall rate limits slightly, but continue sending historical events without a pause between hours. We do not anticipate any impact to customers endpoints due to this change.
Feb 23, 22:54 EST
Monitoring - We started replaying historical missed data at 8:30ET. Customers will begin to see missed events delivered to their webhooks and continuing until all data has been replayed. We plan to replay 1 hour of open and click events from 2/22 1800UTC through (and including) 2/23 19:00UTC with a 5 minute pause between each hour of data.

We will provide future updates to this status page as needed, or at the completion of the replay.

Feb 23, 20:49 EST
Update - All of the tests for the replay process have been validated. We will begin replays at 8:30ET/7:30CT. We plan to replay 1 hour of data at a time, starting from the latest hour and working up to present time, with a pause of 5 minutes between each hour of data.
Feb 23, 20:15 EST
Update - The team is continuing to test and validate the replay process to for historical open and click events. We will post an update to this status page in the next 45 minutes with the exact start time that replays will begin. We plan to replay 1 hour of data at a time, starting from the latest hour and working up to present time, with a pause of 5 minutes between each hour of data.
Feb 23, 19:43 EST
Update - We have verified that the fix is working as expected and customers are seeing generation of live open and click events. We are actively finalizing testing on the replays and anticipate starting the recovery of historical open and click events within the next few hours. We plan to replay 1 hour of data at a time, starting from the latest hour and working up to present time, with a pause of 5 minutes between each hour of data.
Feb 23, 15:48 EST
Update - We are starting the deployment of this fix to production. We are anticipating that the production deployment should be completed within the next 20-30 minutes. We will provide an update as soon as the deployment is completed.
Feb 23, 14:43 EST
Update - The team encountered some unexpected delays in the deployment of the fixes. We are continuing to work on deploying the fixes to production. We will provide an updated estimate of the resolution within the next 30 minutes.
Feb 23, 14:23 EST
Update - The team has identified the fix for this issue and are actively working to deploy a fix to our production clusters. We anticipate that new open and click events will start processing within the next 60-90 minutes. Additionally, our team has confirmed that there was NO data loss due to this issue and are working on a replay of the missing data. We anticipate that replayed data will begin being shipped within the next 4-6 hours.
Feb 23, 10:40 EST
Update - We are continuing to work on a fix for this issue.
Feb 23, 09:14 EST
Update - We are continuing to work on a fix for this issue.
Feb 23, 09:13 EST
Identified - The issue has been identified and a fix is being implemented.
Feb 23, 09:10 EST
Investigating - Our data processing services are running behind; some customers may see a delay of data available via the:

- SparkPost App (webUI): Signals Reports
- Events API
- Customer webhook endpoints

Message injection and outbound message delivery are not impacted - all messages are flowing as expected.
Note: This issue does not impact our SparkPost customers hosted in the EU region.

Feb 23, 08:10 EST
Feb 23, 2024

Unresolved incident: Ongoing issues for messages destined to Office 365 domains.

Feb 22, 2024

No incidents reported.

Feb 21, 2024
Feb 20, 2024
Feb 19, 2024
Resolved - This incident has been resolved. All email delivery delays have been resolved.
Feb 19, 12:38 EST
Identified - We have identified an issue where some customers in the US may be experiencing a delay in the delivery of email. We are working on implementing a fix.
Feb 19, 12:27 EST
Feb 18, 2024

No incidents reported.

Feb 17, 2024

No incidents reported.

Feb 16, 2024
Feb 15, 2024
Feb 14, 2024

No incidents reported.

Feb 13, 2024

No incidents reported.

Feb 12, 2024
Resolved - This incident has been resolved - customers are no longer observing an elevated number of opens and clicks from Office 365 addresses.
Feb 12, 11:15 EST
Monitoring - Some customers continue to report elevated opens and clicks from Office 365 addresses. We continue to engage with Microsoft and we have escalated this issue. We will provide updates via this Incident when we receive updates from Microsoft; the next update will be no later than 1 pm EST Monday.
Feb 9, 16:29 EST
Feb 11, 2024

No incidents reported.