With Shopware 6.2.0 the newsletter configuration was restructured. As a result, separate settings are no longer required and the menu is now obsolete and has been removed.
The double opt-in function for newsletter registration can now be activated through business events. To do this, an event of the type newsletter subscription has been registered - newsletter.register is used and the corresponding e-mail template is assigned to it. Optionally you can still restrict this to individual sales channels and include a rule builder rule.