#46 Failed to start OpenDKIM DomainKeys Identified Mail (ubuntu 18.0 server)

[Carlos Valente]

After following the tutorial at https://www.linuxbabe.com/mail-server/setting-up-dkim-and-spf, when trying to start opendkim with the command: systemctl start opendkim.service
The following message appears:
Job for opendkim.service failed because the control process exited with error code.
See "systemctl status opendkim.service" and "journalctl -xe" for details.
$ journalctl -xe
Jan 30 14:54:49 localhost systemd [1]: opendkim.service: Start request repeated too quickly.
Jan 30 14:54:49 localhost systemd [1]: opendkim.service: Failed with result 'exit-code'.
Jan 30 14:54:49 localhost systemd [1]: Failed to start OpenDKIM DomainKeys Identified Mail (DKIM) Milter.
-- Subject: Unit opendkim.service has failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit opendkim.service has failed.
--
-- The result is RESULT.

[Carlos Valente]

The version of opendkim is 2.11.0~alpha-11build1

[Dennis Gray]

I am getting the same error. I have searched all over and have followed all the tutorials but cannot find a solution

Jun 07 00:22:00 civicrm systemd[1]: opendkim.service: Control process exited, code=exited status=78
Jun 07 00:22:00 civicrm systemd[1]: opendkim.service: Failed with result 'exit-code'.
Jun 07 00:22:00 civicrm systemd[1]: Failed to start OpenDKIM DomainKeys Identified Mail (DKIM) Milter.
-- Subject: Unit opendkim.service has failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit opendkim.service has failed.
--
-- The result is RESULT.
Jun 07 00:22:01 civicrm systemd[1]: opendkim.service: Service hold-off time over, scheduling restart.
Jun 07 00:22:01 civicrm systemd[1]: opendkim.service: Scheduled restart job, restart counter is at 5.
-- Subject: Automatic restarting of a unit has been scheduled
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Automatic restarting of the unit opendkim.service has been scheduled, as the result for
-- the configured Restart= setting for the unit.
Jun 07 00:22:01 civicrm systemd[1]: Stopped OpenDKIM DomainKeys Identified Mail (DKIM) Milter.
-- Subject: Unit opendkim.service has finished shutting down
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- Unit opendkim.service has finished shutting down.
Jun 07 00:22:01 civicrm systemd[1]: opendkim.service: Start request repeated too quickly.
Jun 07 00:22:01 civicrm systemd[1]: opendkim.service: Failed with result 'exit-code'.
Jun 07 00:22:01 civicrm systemd[1]: Failed to start OpenDKIM DomainKeys Identified Mail (DKIM) Milter.
-- Subject: Unit opendkim.service has failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support

[Dennis Gray]

Does anybody read these tickets? I just notice the original post was several months ago and there was no reply. I have Googled this error and have not come up with a solution yet. What am I missing?