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

Email

Email enables you to manage email templates, which are used when you send email through the \Magento\Framework\Mail\TransportInterface implementations.