I am wondering if there is a way to show only aliases in the GAL listing and autocomplete. I am running ZCS Network version 8.6.0 P3.
I have already asked Zimbra support about this. After a lot of back and forth trying to get them to understand the issue, they had no answer. However they did create a bugzilla ticket for me, number 100556. There has been zero activity there though.
In my installation the Zimbra account names match the Active Directory account names (for authentication), but these names are not meant as email addresses. All the Zimbra accounts have aliases assigned to them that provide the "real" email address. However the default for the GAL listing is to show the account names, not the aliases. Autocomplete becomes very confusing for the users because it shows a mix of both account names and aliases.
This has become a serious issue for my company. The account name (AKA unofficial) email addresses are being exposed to clients and the outside world in general, making the situation critical.