Re:Hacking GitHub's Auth with Unicode's Turkish Dotless 'I'
by anderskaseorg on Monday December 16, 2019 @10:17PM
(#21810196)
Yes, they are part of RFC 6530, via its references to RFC 3629 (UTF-8) and the Unicode standard.
There are no email addresses with Turkish characters at all. They all use Latin characters.
It just does not exist - yet at least.