Mail delivery to Public Folders stops when Public Folder database dismounted from old server. Old server to be decommisioned.

Question

I have 2 Exchange 2010 SP3 RU6 servers.  All Mailboxes and Public Folders have been moved from the old server to the new one.  If I dismount the Public Folder database from the old server, delivery to mail enabled Public Folders stops.  I
believe resolving this is the last step before decommissioning this old server and uninstalling Exchange from it. 
Before I delete the Public Folder database and/or uninstall Exchange from my old server, what do I need to do to setup routing/transport of email to Public Folders on my new server?
I've used the MoveAllReplicas.PS1 script successfully and believe nothing remains on the old server.  Do I simply need to remove all mail enabled Public folders now with the Remove-PublicFolder EMC command?  Or is it a background kind of task that
automatically updates after some period of time and then messages just start delivering directly to the new location of my Public Folders?

Answer 1

Hi and thanks for your suggestion, but Get-PublicFolderMoveRequest  is an Exchange 2013 command.  I first ran the MoveAllReplicas script, probably a month ago.  I've also used the RemoveReplicaFromPFRecursive script and
still it says that Replicase still exist within the Public Folder Database that I woul like to remove from my old server to be decommissioned.  I've read of other people trying to uninstall Exchange from an old server that have encountered this error,
causing the uninstall to fail.   Get-PublicFolderStatistics -Server "oldserver" | Format-List returns:
RunspaceId               : 97d4eaaa-68e5-4c5f-ab61-f56de58fc01e
AdminDisplayName         : Nntp Control Folder
AssociatedItemCount      : 0
ContactCount             : 0
CreationTime             : 6/18/2002 8:42:31 AM
DeletedItemCount         : 0
EntryId                  : 000000001A447390AA6611CD9BC800AA002FC45A0300F020D914C926D011A40900C04FD7BD87FFFFFFFF00020000
ExpiryTime               :
FolderPath               : Nntp Control Folder
IsDeletePending          : False
ItemCount                : 0
LastAccessTime           : 8/11/2014 9:28:20 PM
LastModificationTime     : 11/28/2012 5:41:45 AM
LastUserModificationTime :
LastUserAccessTime       :
Name                     : Nntp Control Folder
OwnerCount               : 0
TotalAssociatedItemSize  : 0 B (0 bytes)
TotalDeletedItemSize     : 0 B (0 bytes)
TotalItemSize            : 0 B (0 bytes)
ServerName               :
StorageGroupName         :
DatabaseName             : Public Folder Database 1
Identity                 : 000000001A447390AA6611CD9BC800AA002FC45A0300F020D914C926D011A40900C04FD7BD87FFFFFFFF00020000
MapiIdentity             : 000000001A447390AA6611CD9BC800AA002FC45A0300F020D914C926D011A40900C04FD7BD87FFFFFFFF00020000
OriginatingServer        : oldserver
IsValid                  : True
Here it shows the size and count are 0 (zero), so I should be good to go.  But, I am unable to remove it due to the Replicas Exist error.
Elsewhere, I found a suggestion to clear the checkmark in the OAB 'Distribution' settings regarding Public Folders, but that didn't help.  I've also seen posts saying to dismount the Public Folders, rename them and when mounting,
take the option to create a blank or empty Public Folder database.  When I did that, the mail enabled Public Folders did not resolve when sending emails.  I had to quick mount the saved copy of my Public Folder database.
So, regarding your suggestion, does Disabling and then Enabling mail enabled folders re-associate or register them with the current Public Folder database structure? 
One more thing I found is that the get-mailpublicfolder command returns an error stating a folder is corrupt.
WARNING: The object ci.walla-walla.wa.us/Microsoft Exchange System Objects/Library Vacation Calendar has been corrupted, and it's in an inconsistent state. The following validation errors happened:
WARNING: Property expression "Library Vacation Calendar" 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.
I don't see anything in the name of the folder, unless it actually has the " character embedded in it.  But what is also odd is that I don't have a folder called "Library Vacation Calendar".  It may be the remnant of something in the
past of a failed attempt.  I do have a folder called VacationCalendar that the Library uses, and have even exported to PST and recreated without any impact to this problem.  I do not know how to clear this condition, and assume it is responsible
for the Active Replicas error I get when trying to remove the PF database.