On Sat 01 Oct 2016 at 21:52:53 +0100, Liam O'Toole wrote: > On 2016-10-01, Brian <a...@cityscape.co.uk> wrote: > > On Sat 01 Oct 2016 at 17:25:46 +0100, Liam O'Toole wrote: > > > >> On 2016-10-01, mo <mo...@gmx.net> wrote: > >> > First of all: > >> > Thank you Liam for your help! :) > >> > Thanks for the very nice and long explanation Mark! :) > >> > > >> > I think i should elaborate a little more on my setup.. i guess i did not > >> > make that very clear in the first place, sorry about that. > >> > > >> > My network is consisting of the following systems: > >> > > >> > Main PC - 192.168.23.11 (Running Debian Jessie) > >> > Server - 192.168.23.200 (Running Debian Jessie) > >> > > >> > The server is always online, the PC is only half of the day on. > >> > > >> > What i want to do now is the following: > >> > > >> > Sending mail from my Main PC to my Server and also the other way around, > >> > from the Server to my Main PC. > >> > The Server should also be able to send mail to the "outside" (Meaning to > >> > other SMTP servers). > >> > The second requirement is optional since i dont own a domain and all > >> > this is sitting locally at my home. The most important thing for me is > >> > to send and receive mail from both systems in my home network. > >> > I hope this made my problem a little clearer :) > >> > > >> > I'm a little ashamed to say that, but i could not totally follow your > >> > explanations Mark... I'm quite a newbie when it comes to SMTP.. sorry :( > >> > > >> > Thanks again for all your help ;) > >> > > >> > Greets > >> > > >> > mo > >> > > >> > > >> > >> I should have been a little clearer myself. You don't need to register a > >> domain name. Just invent your own domain name for local purposes. Let's > >> say you choose the domain name "monet", and that you have already given > >> the hostnames "desktop" and "server" to your two machines. Then you > >> would edit the file /etc/hosts on both machines to contain the following > >> lines: > >> > >> 192.168.23.11 desktop.monet desktop > >> 192.168.23.200 server.monet server > > > > I did that on gnome and desktop with appropriate changes: > > > > 192.168.7.20 desktop.monet desktop > > 192.168.7.67 gnome.monet gnome > > > >> Now you only need to tell exim4 on the server that it is the final > >> destination for emails to *.monet, again using the debconf wizard. You > >> will then be able to send emails to local addresses, while emails to all > >> other domains will go through your ISP's smarthost. > > > > I did that on gnome and desktop. > > > >> Incidently, you can also tell exim4 on the desktop to use the server as > >> its smarthost. > >> > >> I realise that you're getting lots of (sometimes contradictory) > >> information from various sources. The barebones configuration I have > >> described above has served me well for several years. > > > > All commands are issued from gnome. > > > > brian@gnome:~# ping -c3 desktop > > PING desktop.monet (192.168.7.20) 56(84) bytes of data. > > 64 bytes from desktop.monet (192.168.7.20): icmp_seq=1 ttl=64 time=0.267 > > ms > > 64 bytes from desktop.monet (192.168.7.20): icmp_seq=2 ttl=64 time=0.255 > > ms > > 64 bytes from desktop.monet (192.168.7.20): icmp_seq=3 ttl=64 time=0.269 > > ms > > > > --- desktop.monet ping statistics --- > > 3 packets transmitted, 3 received, 0% packet loss, time 2001ms > > rtt min/avg/max/mdev = 0.255/0.263/0.269/0.019 ms > > > > brian@gnome:~# ping -c3 desktop.monet > > PING desktop.monet (192.168.7.20) 56(84) bytes of data. > > 64 bytes from desktop.monet (192.168.7.20): icmp_seq=1 ttl=64 time=0.264 > > ms > > 64 bytes from desktop.monet (192.168.7.20): icmp_seq=2 ttl=64 time=0.255 > > ms > > 64 bytes from desktop.monet (192.168.7.20): icmp_seq=3 ttl=64 time=0.255 > > ms > > > > --- desktop.monet ping statistics --- > > 3 packets transmitted, 3 received, 0% packet loss, time 2002ms > > rtt min/avg/max/mdev = 0.255/0.258/0.264/0.004 ms > > > > We expect that result because ping uses files in /etc/nsswitch. > > > > root@gnome:~# exim -bt brian@desktop > > R: dnslookup for brian@desktop > > brian@desktop is undeliverable: Unrouteable address > > > > root@gnome:~# exim -bt brian@desktop.monet > > R: dnslookup for brian@desktop.monet > > brian@desktop.monet is undeliverable: Unrouteable address > > > > Am I the only one who gets this? No capability to deliver mail to > > desktop. What am I doing wrong? > > > > exim seems to be trying to resolve desktop.monet via DNS, thus ignoring > /etc/nsswitch. (I have no idea whether that is the default behaviour.) Do > you have a local DNS capable of resolving the address?
Exim's default behaviour, as has been mentioned a couple of times in this thread, is to use DNS; nsswitch is not involved. This is a default exim install; no files in conf.d altered. How about you? > You might try the mail command from the mailutils or bsd-mailx packages > for comparison. mail uses exim as the MTA. It is hardly likely to work. -- Brian.
