Grey area? Don't you mean technically illegal in the sender, receiver, and slack's jurisdiction? (https://www.fightspam.gc.ca/eic/site/030.nsf/eng/00013.html h

Grey area? Don't you mean technically illegal in the sender, receiver, and slack's jurisdiction? (https://www.fightspam.gc.ca/eic/site/030.nsf/eng/00013.html https://www.fightspam.gc.ca/eic/site/030.nsf/eng/00013.html) (https://www.google.com/search?q=switzerland+spam+laws&oq=switzerland+spam+laws&aqs=chrome..69i57.3991j0j7&sourceid=chrome&ie=UTF-8 https://www.google.com/search?q=switzerland+spam+laws&oq=swi...)