Message not signed with DKIM

Syslog			yes
SyslogSuccess		yes

Canonicalization	relaxed/simple
OversignHeaders		From


UserID			opendkim
UMask			007

Socket  inet:8891@localhost

PidFile			/run/opendkim/opendkim.pid


TrustAnchorFile		/usr/share/dns/root.key

Mode	sv
Canonicalization	relaxed/simple
KeyTable	refile:/etc/opendkim/KeyTable
SigningTable	refile:/etc/opendkim/SigningTable
ExternalIgnoreList	refile:/etc/opendkim/TrustedHosts
InternalHosts	refile:/etc/opendkim/TrustedHosts

Make the file look like this then restart opendkim systemctl restart opendkim also restart postfix, then check.