[CentOS] problem sending/recieving mails

maina at linuxmail.org maina at linuxmail.org
Tue Nov 2 07:11:25 EDT 2010




-----Original Message-----
From: Simon Billis <simon at houxou.com>
To: 'CentOS mailing list' <centos at centos.org>
Sent: Tue, Nov 2, 2010 2:04 pm
Subject: Re: [CentOS] problem sending/recieving mails


Hi,
>
> I ave setup a CentOS server to act as LAN gateway and also as a
> transparent proxy server but all client "passing through" that server
> are enable to send or recieve mails.
>
> The mail server is host on the same LAN running mdaemon, both servers
> are on private IP block(192.168.0.0/24). Am using cisco router to do
> port forwading for mailserver(25,110,143) ports.
>
> If i eliminate CentOS box and direct traffic direct to cisco router
> everything works.
>
> My question is why is it when i use CentOS box as LAN gateway clients
> are unable to send/receive mails? I ave done nating on that box.
>
> Centos 5.5 full updated.

Can you provide an ascii art picture of your network setup please with 
IP
addresses (private ones are fine to show, you can hide the public ones 
:-)),
and also the routing table on the Centos Box

Thanks

S.
--------

Thanks, i will do that when i visit the site coz its a remote site.

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