Some users may be unable to send, or see delays up to two hours when sending, email messages through Exchange Online

Title: Some users may be unable to send, or see delays up to two hours when sending, email messages through Exchange Online

User impact: Users may be unable to send, or see delays up to two hours when sending, email messages through Exchange Online.

More info: These failures and delays could occur when sending email through any Exchange Online connection method. Users may receive a Non-Delivery Report (NDR) when a message fails to send.

Final status: The investigation is complete and we’ve determined the service is healthy. A service incident didn’t actually occur. This communication will expire in 24 hours.

This is the final update for the event.