Reply To: Dkim DNS record is valid, But Emails Are Not authenticated

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#609

Dkim works by authenticating emails using private-public key authentication, private key on the SMTP server, and the public key in the DNS zone.  So this may happen if the dkim signing is not working from your SMTP server.

To fix this in webmin, Open Putty and connect to your machine, then run the following commands:

/lib/opendkim/opendkim.service.generate

systemctl daemon-reload

service opendkim restart

for more info about what and how DKIM works, watch the attached video: