Autor: Francesco Pasqualini Fecha: A: exim-users Asunto: Re: [exim] incoming message lost
On Wed, Jan 28, 2009 at 5:37 PM, Brett Parker
<iDunno@???>wrote:
> On 28 Jan 11:26, Francesco Pasqualini wrote:
> > net/ipv4/tcp_window_scaling=0
>
> If that fixes it it suggests that you're hitting a broken
> firewall/router on the way that doesn't pass on TCP/IP window scaling
> information and breaks it...
I agree !
But I don't know what I have to fix at firewall level ?
What are the tcp/udp port involved ?
The exim4 is behind a firewall in a DMZ with private IP adress NAT (port
fowarding).
Unfotunately we have only 1 public IP (the firewall one)
Maybe I have to forward some port (ICMP ?? but then I cannot ping the
firewall) from the firewall to the mail server.
