Outage in Envoy
Email notifications delayed for Microsoft-hosted recipients
Resolved MinorIncident Report
Summary AI Generated
Envoy email notifications were delayed for approximately 2.7 hours due to a third-party email delivery provider's messages being throttled by Microsoft-hosted mail services, affecting recipients on Microsoft 365 and Outlook who were expecting sign-in verification, invite, and visitor notification emails. Affected messages were queued and retried automatically rather than lost, with no impact on emails sent to non-Microsoft recipients. The provider restored normal delivery and the issue was fully resolved.
We are currently investigating this issue.
Components affected
Envoy Email notificationsTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
6 days ago - at 09/04/2026 02:55PM
This issue has been resolved
MONITORING
7 days ago - at 09/04/2026 02:06PM
Our third-party email delivery provider is reporting recovery in delivery to Microsoft-hosted mail services. We are actively monitoring delivery and will confirm once we have verified that messages are flowing normally.
IDENTIFIED
7 days ago - at 09/04/2026 12:17PM
We have identified the cause as an issue with our third-party email delivery provider, whose messages to Microsoft-hosted mail services are currently being throttled. This affects Envoy emails sent to recipients on Microsoft services such as Microsoft 365 and Outlook — including sign-in verification, invite, and visitor notification emails.
Affected messages are queued and retried automatically rather than lost, and should arrive once normal delivery is restored. As per our investigation, email to all other recipients is unaffected, and no action is required from customers.
Our provider is actively investigating; we will post another update within the hour or sooner if anything changes.
INVESTIGATING
7 days ago - at 09/04/2026 12:14PM
We are continuing to investigate this issue.
INVESTIGATING
7 days ago - at 09/04/2026 12:13PM
We are currently investigating this issue.
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