Exchange 2007 to 2010 public folder replication error 1129

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I currently upgrading from an Exchange server 2007 to 2010. I have moved all mailboxes and OAB. I am having issues replicating the public folders. This is the error I'm getting in the event log on the 2007 box:

Error 1129 occurred while processing a replication event.

Folder: (6-11ED8367F0C) IPM_SUBTREE\Marketing\Marketing

I have looked online and everything about these errors seems to relate from an old 2003 server. Well, we never had a 2003 server.

I'm really not sure what to do at this point. Any help?

Best Answer

In case anyone else is having this issue, we finally found that the Mail Queue was holding the replication emails for the Public Folders. It was easily fixed by checking "Exchange Server authentication" on the Authentication tab in the Default Receive Connector.

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