Error message received while trying to relay through exim

I am trying to relay mail through exim from a windows
machine on the network. I am doing this to try to
troubleshoot a problem I am having with Outlook
on the windows machine. I am using Debian testing
and I have set up the machine to relay mail from all
the machines on the local network or so I thought. Any
thoughts on what I am doing wrong? Following is the
error message:

The message could not be sent because one of the recipients was rejected by
the server. The rejected e-mail address was 'John@foo.com'. Subject
'Testing', Account: 'Foocompany', Server: 'Foocompany', Protocol: SMTP,
Server Response: '550 relay not permitted', Port: 25, Secure(SSL): No,
Server Error: 550, Error Number: 0x800CCC79

"tom" <Spamblocker@ameritech.net> wrote in message
news:FQHgg.38999$4L1.30998@newssvr11.news.prodigy. com...
>I am trying to relay mail through exim from a windows
> machine on the network. I am doing this to try to
> troubleshoot a problem I am having with Outlook
> on the windows machine. I am using Debian testing
> and I have set up the machine to relay mail from all
> the machines on the local network or so I thought. Any
> thoughts on what I am doing wrong? Following is the
> error message:
>
> The message could not be sent because one of the recipients was rejected
> by the server. The rejected e-mail address was 'John@foo.com'. Subject
> 'Testing', Account: 'Foocompany', Server: 'Foocompany', Protocol: SMTP,
> Server Response: '550 relay not permitted', Port: 25, Secure(SSL): No,
> Server Error: 550, Error Number: 0x800CCC79
>

After checking the Exim logs there is the additional
error that no "no host name found for IP address 192.***.***.**". These
computers know each other
using Samba. This is a dynamic IP address generated
by the linksys switch.

tom wrote:

> >I am trying to relay mail through exim from a windows
> > machine on the network. I am doing this to try to
> > troubleshoot a problem I am having with Outlook
> > on the windows machine. I am using Debian testing
> > and I have set up the machine to relay mail from all
> > the machines on the local network or so I thought. Any
> > thoughts on what I am doing wrong? Following is the
> > error message:
> >
> > The message could not be sent because one of the recipients was rejected
> > by the server. The rejected e-mail address was 'John@foo.com'. Subject
> > 'Testing', Account: 'Foocompany', Server: 'Foocompany', Protocol: SMTP,
> > Server Response: '550 relay not permitted', Port: 25, Secure(SSL): No,
> > Server Error: 550, Error Number: 0x800CCC79
> >
>
> After checking the Exim logs there is the additional
> error that no "no host name found for IP address 192.***.***.**". These
> computers know each other
> using Samba. This is a dynamic IP address generated
> by the linksys switch.

In your exim configuration (/etc/exim.conf) you should have a line like
this under MAIN CONFIGURATION SETTINGS (the fourth uncommented line):

hostlist relay_from_hosts = 127.0.0.1:192.168.10.0/24

Of course adjust the LAN addresses to your situation.
--
René Berber