[Gllug] Problem with Email server behind Firewall

wendy carr wendy_carr2003 at yahoo.co.uk
Thu Feb 12 15:16:29 UTC 2004

Hi All,
I am new to setting up email servers and appriciate
your help.I have a broadband connection terminating in
a Binatone router and i connect one of the Ethernet
port to a old PC running IPCOP.My Email server is
connected to the IPCOP on green interface.

              |      | |Router| -----------
              |      |                       |
                                 |       |
            | IPCOP |---|
                                 |       |
                                 |            |
                                 |Email Server|
                                 |            |
I have configured router to forward traffic on port 25
to port 25 of
And in IPCOP to forward all traffic for
port 25 to which is my mail server.
When i try to send emails to user at from
the internet mails get bounced back. But i can send
emails to user at yahoo.com from my mail server.
I use DNS from ISP.
Can anyone tell me what have i done wrong here ?


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