As for Ayyadurai, who maintains a website called The Inventor of Email, his claims about inventing the technology in 1978 have been the subject of ongoing controversy. As my Fortune colleague Don Reisinger reported last March, Ayyadurai contributed to aspects of early email systems but other figures in the scientific community have poured cold water on the claim he "invented email," and a group of prominent academics called it "quite shocking."
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I didn't find the right solution from the Internet.

References: http://fortune.com/2017/01/05/email-inventor-techdirt/

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