Resolved after 4 hours 59 minutes, affecting Silo 1 and Silo 2 and 1 more, on June 19, 2026.
We are continuing to monitor for any further issues.
Affected components
Silo 1Silo 2Silo 3Silo 4Silo 5Silo 6Silo 7Silo 8Silo 9Silo 101
Update timeline
- investigating Jun 19, 2026, 05:24 PM UTC
We are currently investigating an issue where emails may not be sent for customers using custom SMTP routes with Microsoft 365.
- identified Jun 19, 2026, 06:39 PM UTC
The issue has been identified and a fix is being implemented.
- monitoring Jun 19, 2026, 09:49 PM UTC
A fix has been implemented and we are monitoring the results.
- monitoring Jun 19, 2026, 10:23 PM UTC
We are continuing to monitor for any further issues.
- resolved Jun 19, 2026, 10:24 PM UTC
This incident has been resolved.
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