Hopefully someone's run into this... Log into an Ex2007 SP1 mailbox via Ex2007 SP1 CAS (which also runs the HT role), click on the Public Folder link and get the error: "Outlook Web Access is unable to open public folders. If the problem continues contact technical support for your organization." The public folders are located on an Ex2003 box which is the default PF store for the Ex2007 Sp1 database where this mailbox is located.
Found the following at: http://technet.microsoft.com/en-us/library/bb430795(EXCHG.80).aspx Exchange 2003 public folders will be available to Exchange 2007 mailboxes only if the following conditions are true: - The server that is hosting the Client Access server role must not be hosting any other Exchange 2007 server roles. - The /public and /owa virtual directories must have the same SSL setting. - The /public virtual directory has not been renamed. - SSL is disabled on the home public folder server that is assigned to the user's mailbox. That first bullet of "...must not be hosting any other exchange 2007 server roles." certainly sounds like the culprit, but I've only heard/read of issues when the mbx and cas are on the same box. Can anyone confirm? Everything else checks out. Thanks! -alex ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~