Make sure you have RDNS set up with your ISP. Actually CBL can be exploited wherein i can just keep submitting you IP as spammer.

On 10/20/06, croilan cruz <[EMAIL PROTECTED]> wrote:
i have a firewall running on open source  fedora,
my set up is this

                  public ip-------<firewall/router nat> ---- private/dmz ip
                                                          10.0.0.1 for the firewall/nat ip
                                                          10.0.0.2 for dmz mail server
                                                          10.0.0.3 for dmz web server
                                                          10.0.0.4 for dns 
                                                           192.168.0.0 for client pc 
let say my public ip is this for

              202.x.x.25 firewall/router nat ip 
              202.x.x.26 for web
              202.x.x.27 for mail
              202.x.x.28 for dns                                         
previously my present setup run smoothly untill i notice that when i'm sending mail like yahoo or hotmail details reveals the ip of firewall/router nat not the mail server ip in the full details of the mail. but mail outgoing to net is functioning  until  recently the ip of the firewall was block eg. cbl saying that spam was originated at the firewall ip.
 
how would i correct this so that ip of firewall will not tag again in cbl or other site.
when outgoing mail it should be the mailserver ip or the firewall ip could be seen in the details of mail

thanks....

froi


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