On Thu, Mar 18, 2010 at 06:12:32PM -0400, zhong ming wu wrote:
> I find that not all parameters in main.cf can be overridden in
> master.cf with -o.
>
> So far I find that for example header_check , smtpd_data_restrictions,
> and inet_interfaces cannot be overridden in master.cf
> Is there a list of such parameters documented somewhere?
Correlation does not indicate causation. You have made an observation
and drawn a false conclusion from it.
> I am using three different postfix personalities defined in master.cf.
"Personalities" is not a valid concept here, but I think my guess
might point you in the right direction.
> One for local processes listening at loopback
> address. Another for public facing mx host listening on smtp port.
> Another for authenticated clients using submission port
> for relay
>
> I am currently trying to achieve the following: remove "Received:"
> header from submission
> port mails using header_checks=regexp/etc/postfix/map
>
> First I have no header_checks in main.cf and specify
> header_checks=regexp/etc/postfix/map
> only for submission server. This does not do anything to any of
> three servers.
You cannot set header_checks for a smtpd(8) daemon. But you can set
$cleanup_service_name and use an alternate cleanup(8) daemon for an
alternate smtpd.
http://www.postfix.org/postconf.5.html#cleanup_service_name
The -o options only override settings specific to the particular
daemon you're trying to change. See the man page for each daemon.
This page might help you understand the Big Picture:
http://www.postfix.org/OVERVIEW.html
You also mentioned trying to override smtpd_data_restrictions and
inet_interfaces. The former, as hinted by the smtpd_* naming
convention, is a setting for smtpd.
The latter is a setting used by master(8), and as such, is global to
the Postfix instance. There is, however, no need to override it for
any daemon; you simply tell that daemon via its master(5) entry to
bind to the appropriate IP address:
192.0.2.25:587 inet n - n - - smtpd
-o setting=value [ ... ]
This gives you a smtpd listener on 192.0.2.25:587.
smtp unix - - n - - smtp
-o smtp_bind_address=192.0.2.25 -o setting=value [ ... ]
This gives you a smtp(8) client sending from 192.0.2.25.
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