> The main problem is your hosts file.
Are you saying the hosts file on the two machines should be identical?
I tried having this on both machines:
127.0.0.1 localhost.localdomain localhost
192.168.1.2 teufel.hartford-hwp.com teufel
192.168.1.3 langhans.hartford-hwp.com langhans
192.168.1.1 router.hartford-hwp.com router
I didn't know what name to give the router. Is "router" right?
# ifconfig -a on my desktop shows that its IP address has changed to
inet addr:192.168.1.4. I've no idea what could have caused
this. Should I just modify the two hosts files above accordingly, or
find out why teufel is no longer at 192.168.1.2? I tried adding
192.168.1.4 teufel...
to both files, but it did not help.
> The most likely problem is that your laptop is not getting assigned a
> sensible hostname, and the mail domain which Exim is appending to the
> sender is not one which your hosting service is configured to relay for.
> I don't know how Debian configures the hostname, you'd need to look into
> that yourself. But getting the /etc/hosts correct is the first step.
Debian didn't configure the hostname, I did. That is, when installing
the system I assigned the hostname, but I know from experience that I
can change the hostname at will simply by editing the /etc/hostname
file and rebooting (actually, it can be a bit more complicated than
this, but even this works). I assume the hostname file is static and
simply contains the name that I write to it.
> Also, check the settings in /etc/reslov.conf on both machines. They
> should be the same, but appear not to be.
No, they are the same. Both files simply have:
nameserver 192.168.1.1
Haines
