!!! Overview
[{$pagename}] is a [RFC] describing [SMTP] [Security] via Opportunistic [DNS-Based Authentication of Named Entities] ([DANE]) [Transport Layer Security] ([TLS])

[We refer you to the full text|RFC:7672|target='_blank'].[{$pagename}] implementations are protected from [StartTLS] Downgrade [Attack].

!! More Information
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