[CentOS] problem sending/recieving mails

2010-11-02 Thread maina
Hi all,

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.
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Re: [CentOS] problem sending/recieving mails

2010-11-02 Thread Simon Billis
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.

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Re: [CentOS] problem sending/recieving mails

2010-11-02 Thread maina



-Original Message-
From: Simon Billis si...@houxou.com
To: 'CentOS mailing list' centos@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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Re: [CentOS] problem sending/recieving mails

2010-11-02 Thread Benjamin Donnachie
On 2 Nov 2010, at 11:12, ma...@linuxmail.org ma...@linuxmail.org wrote:

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

Can you ping it?  What results do you get from traceroute? And using
the mail service ports?

Ben
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