Configure Postfix to use existing company smarthost (not act as one)

Drew Northup · Jan 3rd 2015

I presume that I'm being a bit too literal in reading something, but here's my question anyway.

I am setting up an i-MSCP configured system for host client webspaces. We already have existing email infrastructure and will continue using it. As the master admin (root) I'd like to be able to get my own system messages (once forwarding is set via the aliases file) and my customers will want their websites to send email via our existing smarthost (which does virus checking, logging, etc).

What do I need to get i-MSCP to not remove / overwrite a plain "relayhost = smarthost....." line in the postfix main.cf file? This is the in-house server so there's no authentication going on.

**Nuxwin** · Jan 3rd 2015

Hello ;

You can use a listener file. For instance: https://github.com/nuxwin/i-ms…rs.d/10_postfix_tuning.pl

Only compatible with i-MSCP 1.2.0.

You must put that file in the /etc/imscp/listeners.d directory. You must also edit the configuration parameters inside this file. To resume:

Perl

# i-MSCP Listener::Postfix::Tuning listener file
# Copyright (C) 2015 Laurent Declercq <l.declercq@nuxwin.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
package Listener::Postfix::Tuning;
use iMSCP::Debug;
use iMSCP::ProgramFinder;
use iMSCP::EventManager;
use iMSCP::Execute;
#
## Configuration parameters
#
# Path to Postfix configuration directory
my $postfixConfigDir = '/etc/postfix';
## Postfix main.cf parameters
# Hash where each pair of key/value correspond to a specific postfix parameter
# Please replace the values below by your own values
my %mainCfParameters = (
'relayhost' => '<your smtp server IP>'
);
## Postfix master.cf parameters
# Array where each line correspond to a postfix master.cf entry. Entries are added at bottom.
# Please replace the values below by your own values
my @masterCfParameters = ( );
# Please, don't edit anything below this line
# Listener responsible to tune Postfix main.cf file, once it was built by i-MSCP
sub setupMainCf
{
if(%mainCfParameters && iMSCP::ProgramFinder::find('postconf')) {
my @cmd = (
'postconf',
'-e', # Needed for Postfix < 2.8
'-c', escapeShell($postfixConfigDir)
);
push @cmd, ($_ . '=' . escapeShell($mainCfParameters{$_})) for keys %mainCfParameters;
my ($stdout, $stderr);
my $rs = execute("@cmd", \$stdout, \$stderr);
debug($stdout) if $stdout;
error($stderr) if $stderr && $rs;
return $rs if $rs;
}
0;
}
# Listener responsible to add entries at bottom of Postfix master.cf file, once it was built by i-MSCP
sub setupMasterCf
{
my $cfgTpl = $_[0];
if(@masterCfParameters) {
$$cfgTpl .= join("\n", @masterCfParameters) . "\n";
}
0;
}
# Register event listeners on the event manager
my $eventManager = iMSCP::EventManager->getInstance();
$eventManager->register('afterMtaBuildConf', \&setupMainCf);
$eventManager->register('afterMtaBuildMasterCfFile', \&setupMasterCf);
1;
__END__

Display More

Once done, you can rerun i-MSCP installer and the relayhost parameter will be automatically re-added

Drew Northup · Jan 5th 2015

Works like a charm. Much appreciated.

submarine · Jan 14th 2015

Thank you very much ! I was pulling my hair out till I found this code ! Pfew.

Configure Postfix to use existing company smarthost (not act as one)

Share

Daily visitors