On Wed, Feb 10, 2021 at 12:17:47PM -0500, Viktor Dukhovni wrote:
> On Wed, Feb 10, 2021 at 05:05:52PM +0000, Chris Green wrote:
>
> This may be a good time to clearly (re)state what problem you're trying
> to solve, now that you're apparently able to assign the desired mydomain
> to each machine.
>
OK, what I want to do is as follows:-
I have several headless machines which need to be able to send error
and other messages to me ch...@isbd.co.uk. All these systems have
'send only' postfix configurations whose sole function is to send
these messages to me. Originally all these systems were on a LAN
behind zbmc.eu so setting 'mydomain = zbmc.eu' in main.cf worked for
all of them and I could use the same main.cf.
I now would like to use the same main.cf file in a few more systems
which are not on the same LAN and thus not the same domain. Ideally
I'd like to continue using the same main.cf for all these systems,
this is simply to make my life easier maintaining them and such.
Looking at what you say above I see the following (on one of the
existing systems in the LAN behind zbmc.eu) :-
chris$ postconf -d myorigin
myorigin = $myhostname
chris$ postconf -d myhostname
myhostname = t470.localdomain
chris$ dnsdomainname
zbmc.eu
chris$ hostname -f
t470.zbmc.eu
chris$ hostname
t470
So one can see why (at present) I need to set 'mydomain = zbmc.eu'
explicitly in main.cf, however I don't quite see how to change things
so that they work how I want.
Thanks for all the help so far everybody, I really do appreciate it.
--
Chris Green
