Am 28.02.2012 16:33, schrieb Jef Driesen: > > Hi, > > I'm trying to setup a mailserver for a small home network. But before going > into the problems, let's start with a description of the situation. > > My network is a typical home network with a cable modem and a dynamic ip. > There is no domain name or mx records. All users on the network have existing > mailboxes provided by my ISP. Those external mailboxes are downloaded with > POP3 (fetchmail) and delivered to a local imap server (dovecot). The main > purpose of the local imap server is to have a centralized mail store that can > be accessed easily from any machine on my network. > > With some help from a dyndns account, I can even access my imap server from > outside my network. This works great, except that I can't send mails from > outside my network. Therefore, I would like to setup an smtp server that > simply forwards all mail to my ISP. > > The first and main obstacle I encounter is the fact that I don't have a real > domain name. I know I can configure some fantasy name: > > myhostname = barracuda.home.lan > mydomain = home.lan > myorigin = $mydomain > mynetworks = 127.0.0.0/8 192.168.0.0/24 > mydestination = $myhostname localhost.$mydomain localhost $mydomain > relayhost = [smtp.isp.tld] > > But I wonder if it's possible to setup postfix without a domain name at all. > For all other purposes (ssh, etc), I'm just using the non-fqdn hostnames > (e.g. user@machine), and that works perfectly. > > According to the docs, I'll also need the smtp_generic_maps setting to map > fantasy names to real addresses. But in my case, users should use the real > adddress directly. Any outgoing mail with a fantasy name may simply be > blocked. To my users, it should appear as if the local smtp server isn't even > there. Is this possible, and how can I achieve this? > > All the other settings like SSL and SASL I can easily figure out, but this > domain name stuff is causing me lots of trouble. > > Jef >
thats not a question of domain/hostnaame etc you need the right mapping tables i think i did it with virtual and sender_canonical_maps but i lost exact how to, its too long passed last i did it -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
