Outage in Yello
[Yello Enterprise] Delayed emails to Microsoft users
Resolved MinorIncident Report
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.
Components affected
Yello Enterprise Production - US Yello Enterprise Production - EU Yello Enterprise UATTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
3 months ago - at 01/28/2026 04:42PM
Our monitoring indicates this throttling has stopped and that the deferred emails have now been delivered.
INVESTIGATING
3 months ago - at 01/27/2026 11:07PM
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.
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