IRONSCALES incident
Email Inspection Delays for O365 Customers in US Region
IRONSCALES experienced a minor incident on June 16, 2025 affecting Office 365 Protection, lasting 3h 50m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jun 16, 2025, 12:36 PM UTC
IRONSCALES is currently experiencing delays in email inspection and mitigation processes for O365 customers hosted in the US region. The R&D team is actively investigating the issue to identify the root cause and implement a resolution. Email delivery remains unaffected, and messages continue to flow into the system as expected.
- identified Jun 16, 2025, 01:08 PM UTC
IRONSCALES has identified the cause of the email inspection delays affecting O365 customers in US-hosted IRONSCALES environments. The issue is related to the system’s responsiveness to increased email traffic volume. Mitigation efforts have been applied to improve processing capacity, and delays are expected to be fully resolved within approximately two hours. Email delivery and security inspections remain fully operational.
- monitoring Jun 16, 2025, 03:44 PM UTC
IRONSCALES has completed the processing of delayed inspection and mitigation processes for O365 customers in US-hosted environments. System operations have returned to normal, and inspection times are back to expected levels. The team is continuing to closely monitor the email queue to ensure sustained performance.
- resolved Jun 16, 2025, 04:26 PM UTC
The issue affecting inspection and mitigation processes for O365 customers in US-hosted IRONSCALES environments has been fully resolved. System performance has remained stable, and no further delays have been observed. IRONSCALES continues to monitor all systems to ensure ongoing reliability. We appreciate your patience and understanding throughout this incident.