[US/EU] Elevated Errors for Microsoft Message Send, Draft, and Read Operations
View the provider incident record →Current answer
Nylas experienced a minor incident: [US/EU] Elevated Errors for Microsoft Message Send, Draft, and Read Operations. ServiceAlert observed recovery on Sep 1, 2026.
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Incident Lifecycle
Affected Components
Microsoft 365
Incident Timeline
Monitoring
According to Microsoft's service health updates, recovery continues across the remaining infrastructure affected by the Exchange Online service degradation, with availability returning across previously impacted scenarios.
Nylas monitoring confirms that message send, draft, and read operations for Microsoft-connected accounts are currently operating at normal levels across both the US and EU regions. The Microsoft-related errors observed during the incident have remained near normal levels i...
Nylas monitoring confirms that message send, draft, and read operations for Microsoft-connected accounts are currently operating at normal levels across both the US and EU regions. The Microsoft-related errors observed during the incident have remained near normal levels i...
Sep 1, 2026 at 11:13 AM UTC
Monitoring
According to Microsoft's service health updates, mitigation has been deployed for the ongoing Exchange Online service degradation and Microsoft continues to report recovery across affected services.
Nylas monitoring confirms that Microsoft-connected message send, draft, and read operations have substantially recovered across both the US and EU regions. The provider-related errors observed during the incident have declined to near-normal levels, and request performance continues to stabilize....
Nylas monitoring confirms that Microsoft-connected message send, draft, and read operations have substantially recovered across both the US and EU regions. The provider-related errors observed during the incident have declined to near-normal levels, and request performance continues to stabilize....
Sep 1, 2026 at 2:32 AM UTC
Identified
According to Microsoft's service health updates, Microsoft has begun deploying broader mitigation for the ongoing Exchange Online service degradation and is reporting gradual recovery across affected services.
Microsoft has indicated that mail flow is expected to be among the first areas to recover. We are continuing to monitor the impact to Microsoft-connected Nylas accounts and will provide another update as recovery progresses.
This issue remains limited to Microsoft-connected accounts a...
Microsoft has indicated that mail flow is expected to be among the first areas to recover. We are continuing to monitor the impact to Microsoft-connected Nylas accounts and will provide another update as recovery progresses.
This issue remains limited to Microsoft-connected accounts a...
Sep 1, 2026 at 12:51 AM UTC
Identified
We have confirmed that the elevated error rates are related to an ongoing Microsoft Exchange Online service degradation affecting Microsoft-connected accounts. Microsoft is tracking the incident as EX1464935.
Customers with Microsoft-connected accounts may experience failures when sending messages, creating or accessing drafts, or retrieving message and mailbox data in the US and EU regions. Some requests may require retrying.
This issue is limited to Microsoft-connected accounts and does n...
Customers with Microsoft-connected accounts may experience failures when sending messages, creating or accessing drafts, or retrieving message and mailbox data in the US and EU regions. Some requests may require retrying.
This issue is limited to Microsoft-connected accounts and does n...
Aug 31, 2026 at 10:25 PM UTC
Investigating
We are seeing elevated error rates affecting message sending, drafts, and message and folder retrieval for a subset of Microsoft-connected accounts in the US and EU regions. Some requests may fail or require retrying.
Microsoft is also reporting a service degradation that appears consistent with the behavior we are observing: https://status.cloud.microsoft/
Initial evidence indicates that this issue is related to the ongoing Microsoft service degradation. We are continuing to assess the imp...
Microsoft is also reporting a service degradation that appears consistent with the behavior we are observing: https://status.cloud.microsoft/
Initial evidence indicates that this issue is related to the ongoing Microsoft service degradation. We are continuing to assess the imp...
Aug 31, 2026 at 9:39 PM UTC
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