Hi everyone,

I've installed zimbra since one year in production environment, I've the zimbra 7.1.4_GA_2555.UBUNTU10_64 UBUNTU10_64 FOSS edition.
That's a very very good!

Now I've added a new WAN connection to balance traffic, my network is

WAN1 (IP_WAN1) ---> FIREWALL --->LAN--->ZIMBRA SERVER
WAN2 (IP_WAN2) ---> FIREWALL --->LAN--->ZIMBRA SERVER

On firewall i've two NAT RULES for Smtp

IP_WAN1:25 ----> Zimbra_Server:25
IP_WAN2:25 ----> Zimbra_Server:25

But when I try to acces from remote, for example by nmaI get this situation:

nmap on IP_WAN1

...
25/tcp open smtp
...

but when i try to access by nmap IP_WAN2

...
25/tcp filtered smtp
...

I've installed a second wan connection to have a failover by mx priority as:

IN MX 10 mail.mydomain.xy
IN MX 20 mail2.mydomain.xy


Please help me..

thank you ..