INKY incident
Issues delivering emails to Microsoft Groups/DLs with Empty From Headers
Minor Vendor's status page →
Resolved after 1 hour 33 minutes, affecting Office 365, on July 23, 2025.
Update has been made to correctly handle and deliver the emails to groups with an empty From header.
Affected components
Office 365
Update timeline
- identified Jul 23, 2025, 03:17 PM UTC
We have identified an issue sending email to Microsoft Groups/Distribution Lists with Empty From Headers. Typically, this would only be older groups in a tenant with this configuration and a patch is being put together to handle these correctly.
- resolved Jul 23, 2025, 04:51 PM UTC
Update has been made to correctly handle and deliver the emails to groups with an empty From header.
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