Ran into an issue with the sendMail
resource within the Microsoft Graph API.
Calls to:
https://graph.microsoft.com/v1.0/users/<USER>/sendMail
Resulted in this response:
{ "error": { "code": "ResourceUnhealthy", "message": "MdbReplicationProtectionUtilizationMonitor is unhealthy." } }
Based on the information I can find it appears to be related to throttling.
The response should contain a retry-after
header that provides the number of seconds your application should wait before attempting to resend the message.
DO NOT attempt to resend immediately as this will simply add to the throttle limit.
An information technology professional with twenty five years experience in systems administration, computer programming, requirements gathering, customer service, and technical support.