I have several users that need to send/recieve email via the same account name and several different domains. What I have done is create the account on the main domain, then add the extra domains as an alias domain with zmprov, then add a domain forward from one domain to the other with zmprov zimbraCatchallAddress
The problem is that these extra domains are actually held elsewhere and whilst the local user son the system can send and recieve to the extra domains OK, any mail that should go to the external system is kept local and rejected as the mailbox does not exist.
Is there any way to keep the functionality that we can have some users on these domains, being able to send as these domains, and get external mail to go out for mailboxes that do not actually exist on the server?
I hope someome understands what I am trying to do!?