Howdy Guys,
Firstly I hate catch all's and are in the process of trashing them.

But we have just combined 3 company into 1 new one and in turn 3 domains into 1 new one.

2 of the domains have ALOT of legacy forwards set up (500+ for one and 700+ for the other) and catch all on 2 of the domains as well.

domaina.com 500+ forwarders
domainb.com 700+ forwarders and catchall
domainc.com catchall
newdomain.com - accounts and forwarders only (but not migrated to zimbra yet will be next few weeks)

I have moved domaina.com, domainb.com and domainc.com to zimbra with a cutdown list of forwarders (no real accounts)

What I am trying to do is:
Have the catch all for each 3 domains going to a single catchall@newdomain.com account which can be used to catch any important missed forwarders.
catchall@newdomain.com will be actively checked for this reason.
catchall@newdomain.com will be an on an external server for about 2 weeks then moved to zimbra.

Then over time faze out the catchalls.

So can I do the domain catchall to a single external email address? if so how .. and then how can this be removed at a later date.

Any help would be great.

Cheers
Ben