Re: Postfix configuration (mail to root)

Magnus Therning <magnus@xxxxxxxxxxxx> wrote:

On Fri, Sep 29, 2006 at 20:07:18 +0300, Andrei Popescu wrote:
Magnus Therning <magnus@xxxxxxxxxxxx> wrote:

This is how I've configured it:

% cat /etc/mailname
my.remote.host

% hostname -f
my.local.host

Maybe I'm wrong, but it seems to me that /etc/mailname should also be
'my.local.host'

But then I can't send emails because a lot of servers out there do a
lookup on the server name in the envelope header and my.local.host is on
a private LAN and can't be looked up.

Basically, the setup I want is:

root and other local accounts are delivered locally
non-local accounts are forwarded to the relayhost

To have the latter work I need to make sure that the envelope header
contains an address with a domain that can be looked up on the internet.
That's what I get by sticking my.remote.host in /etc/mailname. However,
that seems to screw up local delivery :-(

I can't see that this is a very unique situation, AFAICS that is exactly
what Internet With Smart Host is when I run 'dpkg-reconfigure postfix'.

You can do this with rewriting. I just set this up today so its fresh :)

/etc/postfix/main.cf:

smtp_generic_maps = hash:/etc/postfix/generic

then create /etc/postfix/generic with something like this:

user@xxxxxxxxxxxxx account@xxxxxxxxxxxxxx

and run 'postmap /etc/postfix/generic

Now if the mail is for root@xxxxxxxxxxxxx it will be delivered
according to your aliases file. Mail for user@xxxxxxxxxxxxxxxxxx will
be sent to respective address with rewriten From:

Regards,
Andrei
--
If you can't explain it simply, you don't understand it well enough.
(Albert Einstein)


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