Exchange 2003 to 2010 Public folder migration

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We are nearly completed with our migration from exchange server 2003 to Exchange 2010 and all that is left is the public folder. Here is my understanding of the process.

1. I have added a replicas of all public folders including the Free/busy and offline address book to the exchange 2010 server

2. I have pointed all of the 2010 mailbox databases to reference the public folder store database on the 2010 server

3. All user mailboxes are moved to 2010

Now here is the part I am uncertain. From my understanding all I need to do to rehome the public folders permanently is from Exchange system manager on the 2003 server is Right click the public folder store and use the "Move all replicas" command and wait until all the folders show a 0 size.

I have been using the following link as my primary reference:

My question is now that all the users are using the 2010 public folder database will this process overwrite the contents in the 2010 store or will it synchronize?

Are there any steps I am missing?

Thank you for your assistance


since you added the 2010 server to the replica then content should be in sync, thus moving all replica is something like cut & paste, and that is it nothing will be overwritten, if conflict occur the most recent item will overwrite the older one.Regards, Mahmoud Magdy Watch Arabic Level 300 Videos about Exchange 2010 here: Read pretty advanced Exchange stuff I post here:, follow my blog: , corp blog: and if you Liked my post please mark it as helpful and accept it as an answer


As busbar says, they will be in sync already since you had already added the replicas. You are correct with the procedure except you want to watch the Public Folder Instances folder in the ESM, when it is empty the process is complete. ESM will not let you delete the PF database until the PF Instances folder is empty. You can also run the procedure from the 2010 server side by running: MoveAllReplicas.ps1 -Server "Exchange2003" -NewServer "Exchange2010"
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