> Make sure you have the line
> mdns off
> in /etc/host.conf on your incoming SMTP servers.
I've got a system with glibc 2.5 and my /etc/host.conf file simply has:
order hosts, bind
multi off
which I believe is "standard" amongst most all glibc installs. If I'm not
mistaken though, DNS resolving is first checked for in /etc/nsswitch.conf
and goes from there. My nsswitch.conf contains:
hosts: files dns
networks: files dns
and my /etc/resolv.conf contains:
domain internal.lan
nameserver 127.0.0.1
I have no problems with my domain/host resolution that I'm aware of, though
the system is Gentoo based so I'm not sure if perhaps there's some special
compile line flag that was added to my version of glibc that disabled mdns
features by default or not.
Eli.
