Issue
Recently I noticed that some SMTP (mail) clients trying to connect to SMTP server by using STARTTLS command and specifying TLSv1.3 version during handshake.. Currently TLSv1.2 and a few other options is enabled. So, could it be that TLSv1.3 is available now? Or hackers again playing :)?
Solution
It isn't available anywhere. It's not even a proper draft yet, let alone an RFC. Just a wish list as far as I can determine.
EDIT Obviously this was an expiring answer, as TLS 1.3 was always going to become a standard and widely adopted one day. It has now happened and is available in late versions of Java 1.8.
Answered By - user207421
Answer Checked By - Candace Johnson (JavaFixing Volunteer)
