Their MX is listed as mail.protonmail.ch
https://en.wikipedia.org/wiki/ProtonMail
Their whois isn't currently responding
http://whois.namecheap.com/
Wildcard certificate by letsencrypt so no clues there
Context:
https://www.stuff.co.nz/national/cri...rganised-crime
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My degree of sarcasm depends on your degree of stupidity.
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