I have 2 mailboxes that are consistently failing. I have run the backup individually on them and they have both failed and the logs are showing the following error. Failed to process mailbox. Error message [The server cannot service this request right now. Try again later.]] Any ideas?
Best answer by Chris HollisView original
Hope you’re well.
Any idea how big these particular mailboxes are?
The error generally means throttling is occuring: https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/ews-throttling-in-exchange
A way we can usually work around this is to create additional service accounts / azure apps as per: https://documentation.commvault.com/commvault/v11/article?p=125313.htm
If you need assistance with this, I’d suggest raising a support incident and we can review it further / provide remote guidance.