Thank you all.  It was the two issues mentioned here e.g. typo of organizationUnit and missing dc. On Tuesday, February 23, 2016 7:49 PM, Quanah Gibson-Mount <quanah(a)zimbra.com&gt; wrote: --On Wednesday, February 24, 2016 12:50 AM +0100 Emmanuel Lécharny <elecharny(a)gmail.com&gt; wrote: Good point. It's unlikely the author meant to combine the two objectClasses. --Quanah -- Quanah Gibson-Mount Platform Architect Zimbra, Inc. -------------------- Zimbra ::  the leader in open source messaging and collaboration A division of Synacor, Inc