I can't believe I am the only person to get this error, I have tried every MS TID and now working with Microsoft Email support for 3 days. Lets hear from that Exchange Guru who thinks Exchange best thing since sliced Bread. OALGen encountered error [0x8004010f] while calculating this OAL. This OAL will not be available for client download. (\Global Address List) hing since sliced Bread. OALGen encountered error [0x8004010f] while Loading the template /O=TOWER COMMUNICATIONS GROUP/cn=Configuration/cn=Addressing/cn=Address-Templates. All display templates will not be available for the client download.