The mail address published on this list is the address of his 
professional affiliation and it can be found without any difficulty with 
a Google query on the website of the Museum National d'Histoire 
Naturelle (given that I'm educated in Europe, reading texts in french 
works for me). The link to his page (including professional e-mail address):

https://isyeb.mnhn.fr/fr/annuaire/philippe-bouchet-362

If the e-mail published would have been his private e-mail address, I 
would agree with you, but here it's about scientific cooperation through 
e-mail and given the EU GDPR one can be assured that the privacy of 
professor Bouchet has been taken into account in an appropriate manner 
by the MNHN.

Sincerely, Erick

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