Public Folder Deletion Issue

Question

Public Folder Deletion Issue

CtSilencer 1

Public Folder Deletion Issue with Exchange Online.

Trying to do a Public Folder Migration to Exchange Online, Figured I try the not recommended method of PST export via Outlook and Import.

I have the public folder mailbox created and the proper permissions set, tested creating a few public folders and deleting them. I can't seem to delete a few of the test folders.

Receiver Failed to delete \test with exceptions:
Microsoft.Exchange.Data.StoreObjects.OjectNotFoundException: Could not find dumpster for public folder.

I tried via powershell and getting the same error.

Has anyone ran into this issue or have recommendations on what to try next?

Joyce Shen - MSFT 16,701 Reputation points

2020-08-10T06:35:14.637+00:00

According to your information above, you have used the export and import PST method to migrate your public folders to Exchange online. Then you tested creating some public folders and deleting them but few of them failed.

Deleting Items from Public Folders are stored in the Dumspter, have you checked the Dumpster folder size using below command?

Get-PublicFolder \NON_IPM_SUBTREE\DUMPSTER_ROOT -Recurse -ResultSize:unlimited | ?{$_.FolderClass -ne “$null”} | ft name,foldersize

You could also try Update the public folder hierarchy

Get-Mailbox -PublicFolder | Update-PublicFolderMailbox -InvokeSynchronizer -SuppressStatus
Joyce Shen - MSFT 16,701 Reputation points

2020-08-19T08:12:00.493+00:00

Any update?

5 answers

Your answer

Joyce Shen - MSFT 16,701 Reputation points

2020-08-10T06:35:14.637+00:00

According to your information above, you have used the export and import PST method to migrate your public folders to Exchange online. Then you tested creating some public folders and deleting them but few of them failed.

Deleting Items from Public Folders are stored in the Dumspter, have you checked the Dumpster folder size using below command?

Get-PublicFolder \NON_IPM_SUBTREE\DUMPSTER_ROOT -Recurse -ResultSize:unlimited | ?{$_.FolderClass -ne “$null”} | ft name,foldersize

You could also try Update the public folder hierarchy

Get-Mailbox -PublicFolder | Update-PublicFolderMailbox -InvokeSynchronizer -SuppressStatus
Joyce Shen - MSFT 16,701 Reputation points

2020-08-19T08:12:00.493+00:00

Any update?

Answer 1

CtSilencer 1

All Folder size is Zero.

Also, tried to update the hierarchy as well. Still they same error when trying to remove the folder

Joyce Shen - MSFT 16,701 Reputation points

2020-08-13T09:22:49.98+00:00

The list above shows the public folders you have deleted, did you create them again after you successfully deleted them? They still show in EAC and not able to remove?
Joyce Shen - MSFT 16,701 Reputation points

2020-08-21T07:56:09.647+00:00

Any progress so far?

Answer 2

Danny W 1

I am seeing the same issue with my 365 public folders. They were created under Exchange Public folder via O365.

Answer 3

Danny W 1

This what I just did to get past this:
Set-PublicFolder "\PublicFolder-to-delete" -Path "\NON_IPM_SUBTREE\DUMPSTER_ROOT"

Took care of the issue

Answer 4

Jaap Wesselius 1 MVP

I was facing the same error, but after a failed PF migration attempt from Exchange 2016 to Exchange Online. Looks like old public folder mailboxes were not deleted properly.
DannyW-1138 solution with Set-PublicFolder and path to NON_IPM_SUBTREE\DUMPSTER_ROOT worked for me as well.

Answer 5

Fries, Thomas 0

Holy Hell. Finally a fix that works.
Thank you very much for posting this.

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Public Folder Deletion Issue

5 answers

Your answer