Ugo Bellavance wrote:
> I tried with another port, same story:
> 
> Result from my mail_filter:
> 
> [ugob@mail ugob]$ telnet pop.videotron.ca 110
> Trying 24.201.245.36...
> Connected to pop.videotron.ca.
> Escape character is '^]'.
> +OK Microsoft Exchange 2000 POP3 server version 6.0.6603.0 
> (mtlnt501fs.CAMOROUTE.COM) ready.
> quit
> +OK Microsoft Exchange 2000 POP3 server version 6.0.6603.0 signing off.
> Connection closed by foreign host.
> 
> Result for a 'sane' host (my home machine):
> 
> [root@home root]# telnet pop.videotron.ca 110
> Trying 24.201.245.36...
> Connected to relais.videotron.ca (24.201.245.36).
> Escape character is '^]'.
> +OK Messaging Multiplexor (iPlanet Messaging Server 5.2 HotFix 1.21 
> (built Sep  8 2003))
> 
> Thanks,

I thought of a (rather kuldgy, but working) solution for my problem.

I configured my MTA on my mail_filter server to use port 26 for sending 
to my internal_mail server.  Then, I configured m0n0 to use inbound NAT 
on port 26 (DMZ), and send it to my internal_mail on port 25 (or I could 
have configured my internal_mail to listen on port 26).

Now it works, but if anyone has any idea about what is happening, please 
let me know.  Should I try the IPFilter mailing list?

Thanks,

Ugo