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by man8alexd 262 days ago
Almost everything described in the article didn't exist in 1984. Postfix, OpenDKIM, TLS, SPF, DKIM, DMARC. Only very basic SMTP and DNS, but even MX records didn't exist.
1 comments
1over137 262 days ago
OpenDKIM seems dead:

https://github.com/trusteddomainproject/OpenDKIM/issues/236

link