I have a need for a special catchall, I want to not specifically have a catchall for ALL email coming in (and by that I mean to ANY address at my domain), but rather a subset of it.
I have found several pages that detail how to setup general catchalls, but what I am after is to have a catch-'some' per-se, to any address falling within (as an example):
Therefore any mail being directed to admin, sysop, otheruser, bob or bill @mydomainname.com will fail (unless specific accounts have been created for those users).
But anything that is addressed to firstname.lastname@example.org will succeed.
I know it's not the best anti-spam tool, but it's worked for me for the last few years. So before coming over to zimbra full time, I need to be able to accommodate such a plan.