Well, another arrow in the quiver of authenticity.

Less than 50%

"Graham, who has been cited as a cybersecurity expert in The Washington Post, the Associated Press, Wired, Engadget and other news and technology outlets, told the DCNF that he used a cryptographic signature found in the email’s metadata to validate that Vadym Pozharsky, an advisor to Burisma’s board of directors, emailed Hunter Biden on April 17, 2015"

snip

"The email was sent less than a year before Joe Biden pressured former Ukrainian President Petro Poroshenko to fire a prosecutor who was reportedly investigating the gas company in return for a $1 billion loan guarantee."

[link to dailycaller.com (secure)]

https://imgur.com/a/bMDtcDn