On Thu, Nov 18, 2010 at 01:14:29PM -0500, Wietse Venema wrote: > Chris G: > > I have several machines behind a NAT router which run postfix. Some of > > these machines are desktop machines with real users who create and send > > mail while others are (usually headless) servers where the only mail is > > generally that sent by cron jobs and other similar status information. > > > > All of the status messages from all machines on the network are sent to > > me on my desktop machine (using /etc/aliases to point all destinations > > to my E-Mail). Thus I'd like to preserve the (local) name of the > > sending system in these messages so I can identify where an error > > message has come from. > > > > E.g. I want messages from postmaster/root/cron on my dps server to be > > distinguishable from similar messages from the server called mws. > > > > This means (I think) that I want to set the myorigin parameter to the > > machine's name on the LAN (e.g. dps.zbmc.eu or mws.zbmc.eu). This is > > how I have things set at the moment. > > > > However for mail going to the outside world (which does get sent from > > mws.zbmc.eu in particular) I think myorigin should be zbmc.eu as that is > > how the outside world sees my systems. In addition, having myorigin set > > to dps.zbmc.eu, mws.zbmc.eu, chris.zbmc.eu means that the mail headers > > have invalid/unknown host names in the headers as these host names only > > exist on my LAN. > > > > So, is there a way to get what I want? It's surely quite a common > > situation. > > See: > http://www.postfix.org/ADDRESS_REWRITING_README.html#masquerade > http://www.postfix.org/postconf.5.html#masquerade_exceptions > http://www.postfix.org/postconf.5.html#masquerade_domains > http://www.postfix.org/postconf.5.html#masquerade_classes > Thanks!
> BTW this topic has nothing to do with NAT routers. > Well, it's a NAT router that hides my LAN from the outside world. -- Chris Green
