LDAP Queries
This LDAP query should show you all users in your enviroment with exchange mailboxes that have OWA enabled . (&(objectCategory= user )(!protocolsettings=HTTP*0*)(msExchUserAccountControl=0)) This LDAP query should show you all users in your enviroment with exchange mailboxes that have OWA disabled. (&(objectCategory= user )(protocolsettings=HTTP*0*)(msExchUserAccountControl=0))