Setting up opendkim (2.11.0~alpha-10+deb9u1) ...
Job for opendkim.service failed because the control process exited with error code.
See "systemctl status opendkim.service" and "journalctl -xe" for details.
invoke-rc.d: initscript opendkim, action "start" failed.
● opendkim.service - OpenDKIM DomainKeys Identified Mail (DKIM) Milter
Loaded: loaded (/lib/systemd/system/opendkim.service; enabled; vendor preset: enabled)
Active: activating (auto-restart) (Result: exit-code) since Fri 2019-03-01 13:11:12 CET; 9ms ago
Docs: man:opendkim(8)
man:opendkim.conf(5)
man:opendkim-genkey(8)
man:opendkim-genzone(8)
man:opendkim-testadsp(8)
man:opendkim-testkey
http://www.opendkim.org/docs.html
Process: 14287 ExecStart=/usr/sbin/opendkim -x /etc/opendkim.conf (code=exited, status=78)
dpkg: error processing package opendkim (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
opendkim
E: Sub-process /usr/bin/dpkg returned an error code (1)
You have new mail in /var/mail/root
