We are getting a auth request for PF-Mailbox

Question

We deleted the PF-Mailbox but it seems that there was a public folder associated to it and all users are being asked to login to out look multiple times. After running there Powershell commands I get the following messages WARNING: The object ckmhc.org/Microsoft Exchange System Objects/Schedule+ Free Busy Information - First Administrative Group has been corrupted, and it's in an inconsistent state. The following validation errors happened: WARNING: Property expression "Schedule+ Free Busy Information - First Administrative Group" isn't valid. Valid values are: Strings formed with characters from A to Z (uppercase or lowercase), digits from 0 to 9, !, #, $, %, &, ', *, +, -, /, =, ?, ^, _, , {, |, } or ~. One or more periods may be embedded in an alias, but each period should be preceded and followed by at least one of the other characters. Unicode characters from U+00A1 to U+00FF are also valid in an alias, but they will be mapped to a best-fit US-ASCII string in the e-mail address, which is generated from such an alias. WARNING: The object ckmhc.org/Microsoft Exchange System Objects/Offline Address Book - First Administrative Group has been corrupted, and it's in an inconsistent state. The following validation errors happened: WARNING: Property expression "Offline Address Book - First Administrative Group" isn't valid. Valid values are: Strings formed with characters from A to Z (uppercase or lowercase), digits from 0 to 9, !, #, $, %, &, ', *, +, -, /, =, ?, ^, _, , {, |, } or ~. One or more periods may be embedded in an alias, but each period should be preceded and followed by at least one of the other characters. Unicode characters from U+00A1 to U+00FF are also valid in an alias, but they will be mapped to a best-fit US-ASCII string in the e-mail address, which is generated from such an alias. ******** Second Command

WARNING: Failed to locate the public folder "ckmhc.org/Microsoft Exchange System Objects/Default" because the following error occurred: Microsoft.Exchange.Data.Storage.ObjectNotFoundException: Couldn't find the public folder mailbox.
   at Microsoft.Exchange.Data.Storage.PublicFolderSession.GetPublicFolderMailboxPrincipal(OrganizationId organizationId, Guid publicFolderMailboxGuid)
   at Microsoft.Exchange.Data.Storage.PublicFolderSession.OpenAsAdmin(OrganizationId organizationId, IExchangePrincipal connectAsPrincipal, Guid publicFolderMailboxGuid, WindowsPrincipal authenticatedUser, CultureInfo cultureInfo, String clientInfoString, IBudget budget)
   at Microsoft.Exchange.Data.Storage.PublicFolderSessionCache.GetPublicFolderSession(Guid publicFolderMailboxGuid)
   at Microsoft.Exchange.Data.Storage.Management.PublicFolderDataProvider..ctor(IConfigurationSession configurationSession, String action, Guid mailboxGuid)
   at Microsoft.Exchange.Management.MapiTasks.DisableMailPublicFolder.InternalProcessRecord()

Answer 1

Hi @Chris Hartmann ,

Welcome to post our Q&A forum!

Based on the error messages you provided, it seems that the public folder hierarchy has been corrupted. The error message indicates that the public folder hierarchy is in an inconsistent state and that the object “Schedule+ Free Busy Information - First Administrative Group” and “Offline Address Book - First Administrative Group” have been corrupted.

To resolve this issue, you can try to repair the public folder hierarchy by following the steps outlined in this tech article:https://techcommunity.microsoft.com/t5/exchange-team-blog/introduction-to-public-folder-hierarchy-sync/ba-p/609344

The article provides a detailed guide on how to repair the public folder hierarchy using the New-PublicFolderDatabase and Update-PublicFolderMailbox PowerShell cmdlets.

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