Resolved after 16 hours 35 minutes, affecting Yello Enterprise Production - US and Yello Enterprise Production - EU and 1 more, on January 27, 2026.
Our monitoring indicates this throttling has stopped and that the deferred emails have now been delivered.
Affected components
Yello Enterprise Production - USYello Enterprise Production - EUYello Enterprise UAT
Update timeline
- investigating Jan 27, 2026, 11:07 PM UTC
We are aware of an issue with delayed emails to Microsoft addresses due to rate limiting from their spam protection system. We are investigating and actively working with Microsoft to resolve the issue.
- resolved Jan 28, 2026, 04:42 PM UTC
Our monitoring indicates this throttling has stopped and that the deferred emails have now been delivered.
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