Now, I get Zimbra Open source installed at last, but I'm lost on my net configurations...
I don't know if really needs a BIND running locally, cause I have my DNS domain externally. My domain, santiweb.com, gets resolved in the right way, as anyone can test.

My configuration is this, I have a CentOS i386 installed, a ADSL router Cisco series 800, and a net with a IPCop firewall, all are correct, but I can't receive mails, only send, in the right way. My Zimbra machine have santiweb.com as FQHN (I have test others, but I have this a this moment, cause I want all my Mails something than name@santiweb.com running, as I have at the moment, under my IMail server, in a Windows machine, same in a machine with 192.168.2.3 IP)

Well, my Zimbra machine IP are 192.168.2.6.

I'm lost, sorry, but I'm trying to make it work for a couple of weeks...

I need some help. THX in advance.