Create mailing list at user side ?

At this moment, Zimbra doesn't support feature that user can make his/her own mailing list. This can only be done at admin side.
This feature will be presented in the next versions ?

It's on the list of things to do, but we don't have a target date for it. CUrrently, of course, you can create a contact and set the email address to a list of addresses to work around this.