Problem description
Exchange Online backups for users complete with errors.
Cause
The issue is caused when the mailbox quota for user is reached in Exchange Online.
Traceback
📝 Note
[ERROR] Could not list MAPI folder InboxAQMkAGRhNmJiAGViOS1hZTlkLTQ1M2QtYWRmOS03OTkBZThlYjQyNzkALgAAA1PuA5wAFNFCvLm9jLeb6O0BAJeA1BnmM4-BU6wAAAIBDAAAAA==. Cloudapp Skipping. type:MAPI Email Error:Unable to read file. Permission Denied Response Code: 403 Text:{"error":{"code":"ErrorQuotaExceeded","message":"The process failed to get the correct properties."}} (#100000046)
Resolution
Please Increase the Mailbox quota for the affected mailbox in Exchange Online.