confirm_noptin_subscriber_email()
Function: Marks a subscriber as confirmed (Double Opt-in)
Source: subscriber.php:462
noptin_is_page_built_with_elementor()
Function: Is built with Elementor.
Source: functions.php:1552
unsubscribe_noptin_subscriber()
Function: Unsubscribes a subscriber.
Source: subscriber.php:532