Share via

Exchange 2019 PublicFolders are visible even though no PublicFolderMailbox appears as primary

Clemens 96 Reputation points
2021-02-15T07:38:49.223+00:00

Hello everyone,

I am having an issue with our Exchange 2019 PublicFolder Mailboxes. Public folders appear to the Users in Outlook Clients but are not writable, as no new folder can be created. In Exchange Admin Center only two public folder mailboxes appear as "secondary hierarchy".

When I check into ADSI edit, the msExchRootPublicFolderMailbox attribute appears to be set to the object GUID of one of the "secondary hierarchies", so there is an existent RootPublicFolderMailbox linked, however it cannot be edited. Also it is not locker for migration.

Does anyone have an idea what to do or check rather than just recreate the whole public folder hiearchy from scratch with backed-up mails ?

Thank You !

(Sorry for any typos;))

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

0 comments

Answer accepted by question author

Clemens 96 Reputation points
2021-02-16T07:33:40.773+00:00

Thanks for your reply!
Sorry, yes the attribute I'm referring to is MsExchDefaultPublicFolderMailbox. I am sure clearing the address and creating a new PF mailbox will work, but as there is stored most of our relevant mails in the public folders I am hesitating.

In EAC I can't create new folders. And as the DefaultPublicFolderMailbox attribute refers to one of the PF mailboxes, I am sure there is no missing or accidentally deleted one that is set as the primary hierarchy.

Is there anyway to disable a PF mailbox as primary hierarchy making it only a secondary hierarchy ? Reversing this process would be the solution I think...

Was this answer helpful?

1 additional answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Eric Yin-MSFT 4,396 Reputation points
    2021-02-16T03:22:46.727+00:00

    When I check into ADSI edit, the msExchRootPublicFolderMailbox attribute appears to be set to the object GUID of one of the "secondary hierarchies".
    -Just to confirm, do you mean "MsExchDefaultPublicFolderMailbox" in ADSI-Configuration –Services – Microsoft Exchange – “Your Exchange Org Name”?
    If yes, (make a backup) clear “MsExchDefaultPublicFolderMailbox” and create a PF mailbox again, see if it holds primary hierarchy.
    If not, check the path and what is set there?
    Besides, can new folder be created in EAC?

    If an Answer is helpful, please click "Accept Answer" and upvote it.
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.