Hello Stefano,
thank you for your answer but i guess you did not understand. As far as I understand the new EU law it is not OK to let subscibers opt in through a mail that is not explicitly for the newsletter.
I know I can’t setup the newsletter plugin so it will send an extra confirmation email (with link to click) aside from the one send by WP or woocommerce for the account activation. BUT NO MATTER WHAT I SETUP, SUBSCRIBERS ARE ALWAYS CONFIRMED ON FIRST LOGIN EVEN THOUGH THEY DID NOT CLICK ON THE CONFIRMATION LINK THAT WAS SEND IN THE EMAIL FOR THE NEWSLETTERSUBSCIPTION.