Sent email message does not contain a DKIM Signature issue using Centos 7.2

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1

I am trying to configure Opendkim using centos 7.2, Virtualmin 5.05, Postfix but with no luck.
The issue is “This message does not contain a DKIM Signature”
After some investigation I found following issues that may help.

Dec 9 21:23:11 srvr01 yum[12890]: Installed: libopendkim-2.10.3-7.el7.x86_64 Dec 9 21:23:12 srvr01 yum[12890]: Installed: opendkim-2.10.3-7.el7.x86_64 Dec 9 21:45:21 srvr01 systemd: Stopped DomainKeys Identified Mail (DKIM) Milter. Dec 9 21:45:21 srvr01 systemd: Starting DomainKeys Identified Mail (DKIM) Milter... Dec 9 21:45:21 srvr01 systemd: Failed at step USER spawning /usr/sbin/opendkim: No such process Dec 9 21:45:21 srvr01 systemd: opendkim.service: control process exited, code=exited status=217 Dec 9 21:45:21 srvr01 systemd: Failed to start DomainKeys Identified Mail (DKIM) Milter. Dec 9 21:45:21 srvr01 systemd: Unit opendkim.service entered failed state. Dec 9 21:45:21 srvr01 systemd: opendkim.service failed. /var/log/messages Dec 12 12:42:08 srvr01 postfix/smtpd[21724]: warning: connect to Milter service inet:localhost:8891: Connection refused /var/log/maillog

Please help me to figure out whats wrong with it.

Regards,
Mazhar

2

Anybody help me ,waiting for many days,

At least let me know, why I am getting error “systemd: Failed at step USER spawning /usr/sbin/opendkim: No such process”