Have the missing entries been created in AD in the previous 24 hours? There can be a delay of up to 48 hours between AD object getting mail enabled and the subsequent appearance in the OAB.
Also, do the clients that don't display up to date GAL information in Cached Mode use a different OAB to the ones that do work? From: [email protected] [mailto:[email protected]] On Behalf Of xyz Sent: 18 September 2013 02:11 To: [email protected] Subject: [Exchange] Address book issues - user show in OWA and clients in ONLINE mode, but not in OAB Greetings, Exchange 2010 SP2 UR3 Two node DAG with hardware load balancer. OUTLOOK clients 2010 and 2013. About 1500 user mailboxes ( most show properly in OAB). I am starting to see ticket reports that some users do not show in OAB, but when I check they do show in OWA, and also when running the OUTLOOK client in Online mode. This matter appears to only be for a handful of users added over the last couple of months - so is not for all campus users. I tried SOP to download full OAB and same result where they do not show using OAB, but do show in OWA and ONLINE mode. Before I start to make any changes to production, hoping for any suggestions as I continue to research. Thank you. Dana
