Can send but can't receive!!

[mcmick]

First, i setup the zimbra server success. Then i add a firewall front of the zimbra server, after that can send but can't receive..........

there are some settings on my server..

#cat /etc/hosts

127.0.0.1       localhost.localdomain   localhost
192.168.3.28    mydomain.org       mydomain.org

#hostname

mydomain.org

# cat /etc/sysconfig/network

NETWORKING=yes
HOSTNAME=mydomain.org

# cat /etc/resolv.conf

; generated by /sbin/dhclient-script
search localdomain
nameserver 202.130.97.65
nameserver 202.130.97.66
nameserver 192.168.1.25
nameserver 127.0.0.1

[phoenix]

First of all that hosts file is incorrect, you need to have a FQDN on the LAN ip like this:

192.168.x.x mail.domain.org mail

- have a look in the Quick Start Guide for the information.

Second, you need to have valid DNS records pointed to your zimbra server, here a thread that describes it.

Third, have you opened all the ports in the firewall that zimbra needs? There's details in the wiki and forum for a list of ports.