I have zimbra installed on my red hat, I know is not problem of zimbra, is my configuration that don`t work. I have my host configurate with
192.168.2.39 and host zimbra.indaba.es, in red configuration I have
put my dns and in host my server machine name. Why can I send mails, and I cant receive it.

Thanks

Hi. I am not sure I undestood your question...
You have 2 servers: 1) 192.168.2.39/redhat server and 2) zimbra.indada.es.
You want to send and receive emails to your server (or domain) through zimbra.indada.es?

In order to receive emails for a domain, you have ro register your domain in DNS with an MX record that points to your email server.
For example, for domain name "mydomain.es", your DNS zone file should contain:
_______________________________________________
$TTL 86400
$ORIGIN mydomain.es.
@ IN SOA dns.mydomain.es. root.dns.mydomain.es. (

2008111901 ; serial
2h ; refresh
15M ; retry
3W12h ; expire
2h20M ; ttl
)

IN NS dns.mydomain.es.
IN A 192.168.2.1
IN MX 10 mail.mydomain.es.

; Your RedHat server entry
myserver IN A 192.168.2.39
IN HINFO "RedHat 5.1" "mydomain.es email server"

; eMail server alias
mail IN CNAME myserver.mydomain.es.
_______________________________________________
Supposing you want to publish 192.168.2.1 as your domain IP address.