hi I already install zimbra on a ubuntu 6.06, this one is in a private ip 192.0.0.121 and I already configure in the DNS server (192.0.0.151) this ip (MX, A, PTR)...

during the instalation I didn,t have problem with zimbra,
the mail server doesn't have firewall
I configure the principal firewall in this way
* SMTP port 25/tcp incoming from any to 192.0.0.121 outgoing any to any

* HTTP port 80/tcp incoming from any to any outgoing any to any

* POP3 port 110/tcp incoming from any to 192.0.0.121 outgoing 192.0.0.121 to any

* IMAP port 143/tcp incoming from any to 192.0.0.121 outgoing any to any

* LDAP port 389/tcp incoming from any to 192.0.0.121 outgoing 192.0.0.121 to any

* HTTPS port 443/tcp incoming from any to any outgoing any to any

* SMTPS port 465/tcp incoming from any to any outgoing any to any

* IMAPS port 993/tcp incoming from any to any outgoing any to any

* POP3S port 995/tcp incoming from any to any outgoing any to any

* Admin Interface port 7071/tcp


I can send mail Zimbra to Zimbra (internal in the lan)
I can send mail Zimbra to gmail

but I can't recive mail from gmail, hotmail, yahoo, etc

what else I need to config? thank