[Rspamd-Users] First Time: DKIM Signing Only

[Allen, Norton T.]

Guess why? I've been putting DKIM signing off for too long.

I've spent the past couple days poring over the rspamd documentation 
(and the DKIM, ARC, DMARC,  and Google doc). I just threw together my 
best guess at the configuration I think would work, including:

  * /etc/rspamd/local.d/arc.conf: closely following the example here
    <https://rspamd.com/doc/modules/arc.html>
  * /etc/rspamd/local.d/dkim_signing.conf: closely following the example
    here <https://rspamd.com/doc/modules/dkim_signing.html>
  * /etc/rspamd/rspamd.conf.local: closely following the FAQ here
    <https://rspamd.com/doc/faq.html#can-i-just-sign-messages-using-dkim>

I have two domains, and I listed them explicitly in the arc.conf and 
dkim_signing.conf, so no maps.

I tested with the command recommended in the FAQ above:

    rspamc --header="settings-id=dkim" message.eml

using a couple different example emails, one inbound, one outbound. In 
each case, the result was "Action: no action".

I am of course not sure what I should expect to see, and would be happy 
to hear any suggestions on the best way to test and/or fix my 
configuration. I reviewed the logs, and I did not see anything that 
looked like a problem.

I will be integrating with postfix, but I'd like to test rspamd 
separately first if possible.

I do have a question about the settings module. I see two different 
suggestions that seem similar:

  * The one from the FAQ
    <https://rspamd.com/doc/faq.html#can-i-just-sign-messages-using-dkim>
  * The one from the DKIM signing
    <https://rspamd.com/doc/modules/dkim_signing.html#optimize-signing-only-mode>

These differ in what keywords are involved, and it isn't clear to me how 
those are selected. In the FAQ the settings are 'sign_id', 
'sign_authenticated' and 'sign_networks', but under DKIM signing, it's 
just 'dkim_signing'. Do I perhaps need both?