We have two Zimbra servers running together. The main one for our admin accounts, and the secondary for our agents. I have been able to get the two servers to send email back and forth, but the secondary will not receive from external addresses. I have tried to set everything up using the "Split-Domain" wiki article but I had no luck there. When I implemented those settings the mail stopped flowing all together... Maybe I'm placing the commands in the wrong places? Our primary has a DNS name and external address, our secondary only has an external address. They both have their local DNS names.

Primary info:

Secondary info:

We basically want the first one to forward any emails that are found to the secondary server... Any help with this will be greatly appreciated...