Config VM for Mail Server

[amilkar]

Hi everybody, I new with Promox. I've made ​​many interesting thing, but i have a real and big problem.

This is the scenario.

This is my /etc/network/interface

auto lo
iface lo inet loopback


auto eth1
iface eth1 inet static
address 172.19.2.1
netmask 255.255.0.0
gateway 172.19.1.1


auto vmbr0
iface vmbr0 inet static
address 192.168.10.1
netmask 255.255.255.0
bridge_ports eth0
bridge_stp off
bridge_fd 0

I have a VM ws 2008 with static ip=192.168.10.2. From subnet 192.168.10.0/24 everything its ok. I reach port 80,25, everything.

To access outside the subnet I have a nat fiilter to access from 192.168.10.0 to 172.19.0.0, and I can reach everything.

iptables -t nat -A POSTROUTING -s 192.168.10.0/24 -o eth1 -j SNAT --to 172.19.2.1


But inwardly it is not possible, I can't reach prt 25 from outside subnet. From any pc in 172.19.0.0 is imposible reach acces to prt 25 in 192.168.10.2.

I have this,

iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 25 -j DNAT --to 192.168.10.2:25


I also try with

iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 25 -j DNAT --to 192.168.10.1:25

but it not working..

Please, I'm a serious issue.

I sincerely appreciate any help.