PHP 7.3 reaches end of support in December 2021 and Adobe Commerce 2.3.x reaches end of support in April 2022. We strongly recommend planning your upgrade now to Adobe Commerce 2.4.x and PHP 7.4.x to help maintain PCI compliance.

Magento_Newsletter

Magento_Newsletter module allows clients to subscribe for information about new promotions and discounts and allows store administrators to send newsletters to clients subscribed for them.