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DKIM setup writeup for multi domain?

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

Comments

Re: DKIM setup writeup for multi domain?

By Michael at 03/12/2019 - 14:48

I think this is the one I used. Works great.
<a href="https://www.stevejenkins.com/blog/2011/08/installing-opendkim-rpm-via-yum-with-postfix-or-sendmail-for-rhel-centos-fedora/" title="https://www.stevejenkins.com/blog/2011/08/installing-opendkim-rpm-via-yum-with-postfix-or-sendmail-for-rhel-centos-fedora/">https://www.stevejenkins.com/blog/2011/08/installing-opendkim-rpm-via-yu...</a>

Re: DKIM setup writeup for multi domain?

By Ralph Seichter at 03/12/2019 - 14:43

Amavisd and OpenDKIM each support multiple domains. Since Postfix does
not handle DKIM signatures, you need to look into external tools.

-Ralph

Re: DKIM setup writeup for multi domain?

By Andrey Repin at 03/12/2019 - 08:49

Greetings, <a href="mailto: ... at sbt dot net.au"> ... at sbt dot net.au</a>!

Since postfix itself does not perform DKIM signing or validation, the postfix
setup is no different, no matter, how many domains you are using.

You just set "this" up and tell your DKIM handler what to do.