The message could not be delivered because we could not connect to the recipient's email server. The sender of the message was sent a non-delivery report with details of the problem. Please review these details:
Recipient: {Recipient}
Email server name: {DestinationMailServer}
Technical error message: {MessageDetail}
To fix the problem, we recommend that you check the recipient's email admin about the error.
Contacting support won't resolve this issue because it's due to a problem that's outside the Office 365 service.
Note, we sent a non-delivery report to the sender that gives the details about why the message couldn't be delivered.
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