Understanding SSL vs TLS vs STARTTLS
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Founder & CTO
There’s often quite a bit of confusion about the different terms SSL vs TLS vs STARTTLS. To help explain the differences and a bit of the history behind these terms (especially with regard to email protocols), I’ve put together a help page that I hope is useful for people.
http://www.fastmail.fm/help/technology_ssl_vs_tls_starttls.html