Slow Delivery Inbound to Office 365

resolved · 4 Sept 2026, 16:12

Auto-resolved by the status page: the vendor stopped reporting this incident in their feed.

investigating · 4 Sept 2026, 14:01

Sep 4, 13:00 UTC Monitoring - 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. We'll continue to monitor and post updates. https://x.com/MSFT365Status Sep 4, 11:12 UTC Identified - This appears to be related to an ongoing issue on Microsoft 365s infrastructure. It can be tracked via the below link. https://admin.cloud.microsoft/?#/servicehealth/:/alerts/EX1467029 Sep 4, 10:37 UTC Update - Outbound Relay also appears to be affected. Only for traffic going to Office 365 Sep 4, 10:09 UTC Investigating - We're seeing slower delivery into O365 for Mesh customers. We're currently investigating.

investigating · 4 Sept 2026, 12:13

Sep 4, 11:12 UTC Identified - This appears to be related to an ongoing issue on Microsoft 365s infrastructure. It can be tracked via the below link. https://admin.cloud.microsoft/?#/servicehealth/:/alerts/EX1467029 Sep 4, 10:37 UTC Update - Outbound Relay also appears to be affected. Only for traffic going to Office 365 Sep 4, 10:09 UTC Investigating - We're seeing slower delivery into O365 for Mesh customers. We're currently investigating.

investigating · 4 Sept 2026, 11:38

Sep 4, 10:37 UTC Update - Outbound Relay also appears to be affected. Only for traffic going to Office 365 Sep 4, 10:09 UTC Investigating - We're seeing slower delivery into O365 for Mesh customers. We're currently investigating.

investigating · 4 Sept 2026, 11:10

Sep 4, 10:09 UTC Investigating - We're seeing slower delivery into O365 for Mesh customers. We're currently investigating.