I'm setting up 4.5RC2 in hopes to migrate off of a couple of hodge-podge mail servers after 4.5 is released. I've run into one configuration issue that I can't seem to resolve on my own, however.
We currently use subdomains for throwaway addresses. For example, a user's main address is email@example.com. We set up a catchall address on the subdomain john.example.com, and he uses firstname.lastname@example.org, email@example.com, and firstname.lastname@example.org as throwaway addresses. If he starts getting spam to email@example.com, we just put that address in the reject list for the mta.
Is there any way to configure Zimbra similarly?