Re: DKIM setup writeup for multi domain?

Tue, 12 Mar 2019 12:20:43 -0700 

I found my notes. This is for RHEL:
yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm subscription-manager repos --enable "rhel-*-optional-rpms" --enable "rhel-*-extras-rpms" 
yum -y install opendkim

#generate keys for each domain
cd /etc/opendkim/keys
mkdir example1.com
mkdir example2.com
opendkim-genkey -D /etc/opendkim/keys/example1.com/ -d example1.com -s dkim1 -a opendkim-genkey -D /etc/opendkim/keys/example2.com/ -d example2.com -s dkim1 -a 

chown -R root:opendkim /etc/opendkim/keys/*
chmod 640 /etc/opendkim/keys/example1.com/dkim1.private
chmod 644 /etc/opendkim/keys/example1.com/dkim1.txt
chmod 640 /etc/opendkim/keys/example2.com/dkim1.private
chmod 644 /etc/opendkim/keys/example2.com/dkim1.txt

#/etc/opendkim.conf
Mode s
#LogWhy yes
#KeyFile /etc/opendkim/keys/default.private
KeyTable /etc/opendkim/KeyTable
SigningTable refile:/etc/opendkim/SigningTable
ExternalIgnoreList refile:/etc/opendkim/TrustedHosts

#/etc/opendkim/KeyTable
dkim1._domainkey.example1.com example1.com:dkim1:/etc/opendkim/keys/example1.com/dkim1.private dkim1._domainkey.example2.com example2.com:dkim1:/etc/opendkim/keys/example2.com/dkim1.private 

#/etc/opendkim/SigningTable
*@example1.com dkim1._domainkey.example1.com
*@example2.com dkim1._domainkey.example2.com

#/etc/opendkim/TrustedHosts
127.0.0.1
10.0.0.0/8

#/etc/postfix/main.cf
#OpenDKIM
smtpd_milters = inet:127.0.0.1:8891
non_smtpd_milters = $smtpd_milters
milter_default_action = accept





On 2019-03-12 1:52 pm, Fazzina, Angelo wrote:
Hi, wouldn't the answer to the OP's question be to just list all the domains they want signed in the file 
/etc/opendkim/SigningTable

Assuming they are using Opendkim.

I wrote some documentation here.
https://linux.uits.uconn.edu/dkim-review-of-all-aspects/

-ANGELO FAZZINA

ang...@uconn.edu
University of Connecticut,  ITS, SSG, Server Systems
860-486-9075

-----Original Message-----
From: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> On Behalf Of Michael 
Sent: Tuesday, March 12, 2019 2:48 PM
To: postfix-users@postfix.org
Subject: {SPAM?} Re: DKIM setup writeup for multi domain?

I think this is the one I used.  Works great.
https://nam01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.stevejenkins.com%2Fblog%2F2011%2F08%2Finstalling-opendkim-rpm-via-yum-with-postfix-or-sendmail-for-rhel-centos-fedora%2F&amp;data=02%7C01%7Cangelo.fazzina%40uconn.edu%7C9624b05d01574a99475608d6a71b7196%7C17f1a87e2a254eaab9df9d439034b080%7C0%7C0%7C636880133650788591&amp;sdata=YTfwUuvVVUSb8bzRRKXWNg1xpaVCclorJ6eKAxz2ybw%3D&amp;reserved=0

On 2019-03-12 7:31 am, li...@sbt.net.au wrote:


I;m looking at adding DKIM to my Postfix

is there some up to date DKIM setup write up for multi domain Postfix
setup ? most of the ones I've found are for single domain, and, use
different setups, hence I'm trying to figure out what's the best way to 
set this up.

V

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