Model
GuestSubscriptionChecker
Magento\Newsletter\Model\GuestSubscriptionChecker
What it does
This class checks whether a guest (non-logged-in user) is subscribed to the newsletter by their email address.
Developers would use this when they need to verify if a guest email exists in the newsletter subscription database without requiring customer authentication, such as on newsletter signup forms or subscription management pages.
Public Methods
- isSubscribed()