Fresh install of ZCS 8.0 on SLES 11 SP2. I set auth for a specific domain during the creation of the domain using the Zimbra web adminUI. I can not login to my account on this domain which lead me to look at the domain and sure enough, it is set for internal auth. No problem, i'll just set it for external AD auth but when i do, the config does not get saved. That domain still reports internal auth. Is this a bug or is there another way i can config this doman for external AD auth?