Microsoft 365 Public Folder backups stays in running with 0 byte count
Article ID: 100069878
Updated On:
Description
Error Message
O365Exchange*.log shows :
14:54:29.472","thread":"3040","sev":"error","m":"Failed.","fn":"MailboxEWSBackup::SyncFolderItemsRequest","mbx":"[id: d2aab, upn: BEAdm@domain, tp: 3]","folder":"[it: [id: bqcizwULwLUvNgAAAA==, dn: MY-PUBLIC-FOLDER], st: [requestId: ba1430f1-705b-45f9-a4c4-0fb196efa188, status: 107, faultCode: (0), sysError: -1, message: End of file or no input: message transfer interrupted or timed out (300 sec max recv delay) (300 sec max send delay), backOffTime: 0, isRetryable: 1], atmt: 1]","isRetryable":true,"maxAttempts":6}
Cause
The PerUserReadStateEnabled option can cause the public folder backup to hang.
Resolution
Set PerUserReadStateEnabled to False for Public Folders.
Get-PublicFolder -Identity "\" -Recurse -ResultSize Unlimited | Set-PublicFolder -PerUserReadStateEnabled $false
Issue/Introduction
