Outlook Clients Can't Resolve MAPI Profiles Against Front-End Server

Greetings everyone,

Sorry this is an Exchange 2003 question, but the forum doesn't have a 2003-specific area.

I have recently restaged an Exchange 2003 Front-End server, and followed the MS documentation to disable the public folders and mail store services so the system's only running the needed minimums to provide OWA, EAS, and RPC over HTTP.  Now Outlook clients can't use this server to resolve MAPI data when Outlook runs for the first time.  Is this "behaviour by design" because that server isn't running any Information Store services?  Any information about this is greatly appreciated.

Thanks!

S_B