SparkPost Status

Monitoring: We continue to see improvement with Microsoft delivery, though isolated cases of delays persist. Microsoft's mitigations are largely effective, but we're still working with their team to address edge cases as they arise. We will continue to maintain heightened monitoring through the week to ensure complete stabilization. No action is required from senders - any affected messages will continue to retry automatically.

Monitoring: We have seen stabilization, but are still seeing Microsoft delays in rare cases. Our team is mitigating with Microsoft as those occur. We are going to keep the status page in Monitoring state through the weekend as we continue to monitor for a full recovery at Microsoft.

Identified: We continue to see some delays at Microsoft domains and are working with Microsoft to remediate. At this time, Microsoft is aware and continues to investigate.

Identified: We have started to receive reports from Microsoft that they are implementing mitigations within their environment. We continue to monitor and coordinate with them for full resolution.

Identified: We continue to work with Microsoft on these delays. We are in active contact with their delivery team and working towards full resolution.

Investigating: Microsoft continues to investigate the issue. We are actively in contact with their team.

Investigating: We continue to work with Microsoft on full mitigation. They are currently experiencing infrastructure issues that is causing them to incorrectly block legitimate traffic from multiple Bird IP ranges.

Our sending infrastructure and email traffic are operating normally. All other mailbox providers are receiving mail without issue. Microsoft is aware of the issue and is actively investigating. We are in contact with their team and monitoring for resolution. We expect this to be resolved once Microsoft completes their fix.

Messages will retry automatically - no action needed from you

Investigating: Impact is confirmed to be scoped to EU region only. Investigation ongoing; tickets raised to Microsoft to further investigation.

Investigating: We are currently investing reported delays when sending emails towards Microsoft email domains

Monitoring: We continue to see improvement with Microsoft delivery, though isolated cases of delays persist. Microsoft's mitigations are largely effective, but we're still working with their team to address edge cases as they arise. We will continue to maintain heightened monitoring through the week to ensure complete stabilization. No action is required from senders - any affected messages will continue to retry automatically.

Monitoring: We have seen stabilization, but are still seeing Microsoft delays in rare cases. Our team is mitigating with Microsoft as those occur. We are going to keep the status page in Monitoring state through the weekend as we continue to monitor for a full recovery at Microsoft.

Identified: We continue to see some delays at Microsoft domains and are working with Microsoft to remediate. At this time, Microsoft is aware and continues to investigate.

Identified: We have started to receive reports from Microsoft that they are implementing mitigations within their environment. We continue to monitor and coordinate with them for full resolution.

Identified: We continue to work with Microsoft on these delays. We are in active contact with their delivery team and working towards full resolution.

Investigating: Microsoft continues to investigate the issue. We are actively in contact with their team.

Investigating: We continue to work with Microsoft on full mitigation. They are currently experiencing infrastructure issues that is causing them to incorrectly block legitimate traffic from multiple Bird IP ranges.

Our sending infrastructure and email traffic are operating normally. All other mailbox providers are receiving mail without issue. Microsoft is aware of the issue and is actively investigating. We are in contact with their team and monitoring for resolution. We expect this to be resolved once Microsoft completes their fix.

Messages will retry automatically - no action needed from you

Investigating: Impact is confirmed to be scoped to EU region only. Investigation ongoing; tickets raised to Microsoft to further investigation.

Investigating: We are currently investing reported delays when sending emails towards Microsoft email domains