Event ID 3091 is logged and public folder replication fails in an Exchange Server 2010 environment

Applies to: Exchange Server 2010 Service Pack 3Exchange Server 2010 EnterpriseExchange Server 2010 Standard


This issue occurs after you import a .pst file that contains public folders from Microsoft Exchange Server 2003 to Microsoft Exchange Server 2010. The event log resembles the following:
Log Name: Application
Source: MSExchangeIS Public Store
Date: Date & Time
Event ID: 3091
Task Category: Replication Errors
Level: Warning
Keywords: Classic
User: N/A
Computer: Computer
Description: Error 0x8004010f occurred while processing an incoming replication message.


This issue occurs because the .pst file that contains the public folders has the PR_EXTENDED_ACL_DATA property. However, the property cannot be recognized and processed by Exchange Server 2010. Therefore, the public folder replication fails.


To resolve this issue, install the following update:


To work around this issue, before you import each .pst file to Exchange Server 2010, open the .pst file, and remove the PR_EXTENDED_ACL_DATA property by using the Microsoft Exchange Server MAPI Editor (MFCMAPI) utility.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about the publish folder replication, see Understanding Public Folder Replication in Exchange Server 2010.
For more information about the MFCMAPI utility, see Microsoft Exchange Server MAPI Editor.