I'm just setting up and testing Zimbra for my situation. I'd like to be able to allow my users to create their own aliases. For example, I'd like firstname.lastname@example.org to be able to create email@example.com, firstname.lastname@example.org, email@example.com, and so on. This way, when a user needs to use an email address to sign up for access to some website or webforum, he can create an alias for it instead of giving out his main email address.
I can't seem to find a way to allow users to create their own aliases. Is this possible with Zimbra?