Exim does not sign outgoing mails

[r9host]

Hello

I have configured exim to sign outgoing mails with my generated private key. Also I have added the DNS record with public key. The DNS records is already validated. However Exim does not sign outgoing messages. The following is what I've added to my exim.conf. Also I have alread made sure private key exists at the specified path.

remote_smtp:
  driver = smtp
  dkim_domain = r9host.com
  dkim_selector = key1
  dkim_private_key = "/root/dkim.private.key"
  dkim_canon = relaxed

I will highly appreciate if you can help to fix this issue.
TIA

 

[ughosting]

How are you checking that the emails are signed?

Also ensure you are not sending mail to yourself, as exim (under most configs) will not sign email destined for the same server, as it would be a waste of time.