DKIM Not signing messages

I've scowered the forums and failed to find any additional information as to what might be preventing postfix from signing my messages for DKIM.

I followed the guide to install virtualmins dkim feature. I dropped the key down to 1024 instead of 2048 per suggestions in the forums.

I've waited a reasonable amount of time for DNS to propagate.

DNS is propagating. I've checked several of my hosted domains and they all have the appropriate record.

Sending test messages I am getting a reply from the check-auth@verifier.port25.com that the message is just not signed (Neutral)

Am I missing a toggle in the settings somewhere?

Main.cf has smtpd_milters = inet:localhost:8891 non_smtpd_milters = inet:localhost:8891

But some of the reading I've done suggest that this needs to be smtpd_milters = local:/opendkim/opendkim.sock non_smtpd_milters = local:/opendkim/opendkim.sock

I did try changing that but the message comes back again as not signed.