Outage in Bitdefender GravityZone
Slow email delivery inbound/outbound to Office 365
Resolved MinorIncident Report
Summary AI Generated
Bitdefender GravityZone experienced slow inbound and outbound email delivery to Office 365 for approximately 4.5 hours, caused by an issue on Microsoft's 365 infrastructure. Microsoft acknowledged the problem publicly and applied mitigations, after which delivery times began improving. The incident was resolved once deferred email events were no longer observed.
We're seeing slower delivery only to Office 365 and we are currently investigating
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Latest Updates ( sorted recent to last )
RESOLVED
10 days ago - at 09/04/2026 03:16PM
We're no longer observing live deferred events. We're continuing to monitor the situation, but at this point we consider the situation resolved.
MONITORING
10 days ago - at 09/04/2026 01:03PM
We're beginning to see improvements with delivery into Microsoft 365's infrastructure. We are still seeing some messages being given a deferral by them. They have acknowledged the issue publicly and that they are applying mitigations: https://x.com/MSFT365Status/status/2095853672643072434
We'll continue to monitor https://x.com/MSFT365Status and post updates.
IDENTIFIED
10 days ago - at 09/04/2026 11:53AM
This appears to be related to an ongoing issue on Microsoft 365 infrastructure. It can be tracked via the below link.
https://admin.cloud.microsoft/?#/servicehealth/:/alerts/EX1467029
INVESTIGATING
10 days ago - at 09/04/2026 10:48AM
We're seeing slower delivery only to Office 365 and we are currently investigating
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