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Password prompt when attempting to view a replicated public folder

If a user is being prompted for a password when trying to access a replicated Exchange public folder, you could be dealing with an information store permission problem, rather than a directory or client permissions (a.k.a. folder rights) problem. SearchExchange.com expert Richard Luckett explains.

I have a user who is prompted for a password when attempting to view a replicated public folder, even though the permissions appear to be OK. Do you have any suggestions?
VIEW MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A.

The version of Microsoft Exchange you are running, and the particular client the user is using to access public...

folders (Outlook 2000/2003, Outlook Web Access, IMAP4, etc.), have an impact on these problems. I'm going to assume you are running Exchange Server 2003 and Outlook 2003.

Public folder permissions are complex. Since you verified that the folder permissions are correct, I think it could be an information store permission problem, rather than a directory or client permissions (a.k.a. folder rights) problem.

Compare the permissions on the two servers where the public folder replicas are homed at the file system level. By default, authenticated users should have permissions to the actual database files. If the permission has been removed or changed, that could create an access problem for your user if he/she is not a member of a security group that has access.

The public folder store is in %systemroot%\program files\exchsrvr\mdbdata\pub1.edb and pub1.stm by default.

Speaking of defaults, also check the default public store setting on the user's mailbox store. This setting is actually what dictates which public folder server the Outlook client will connect to first.

In the event that the replica is not on that server, Outlook will receive a referral list of replicas from that server. Connector costs, blocked referrals and manual referral lists can all affect how a user gets to a replica and could be related to your user's problem.


MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A:

A similar issue has happened on a few sites here. Some computers would have the issue, others would not. It was cured by checking the RPC services on the client and adding the following statements:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\ClientProtocols]
"ncacn_np"="rpcrt4.dll"
"ncacn_ip_tcp"="rpcrt4.dll"
"ncadg_ip_udp"="rpcrt4.dll"
"ncacn_http"="rpcrt4.dll"

—Patrick D.


Do you have comments on this Ask the Expert Q&A? Let us know.
Related information from SearchExchange.com:

  • FAQ: Exchange public folders
  • Reference Center: Public folder management
  • Reference Center: Password management


  • This was last published in October 2005

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