If you want to build newsletters for your website, you must configure Newsletter in the backend. Newsletters are crucial tools for keeping customers informed about your business's activity, especially when it comes to sales, discounts, and loyalty programmes. Additionally, using a tailored approach while communicating with your customers is a beneficial strategy. As a result, you can draw in new clients and remind existing ones of the brand. So creating newsletters is the ideal action to encourage consumer loyalty.  You can specify a confirmation link in the setup for the consumers to click on in order to finish the subscription process. The double opt-in1 approach is the procedure that necessitates customers to complete an additional step to confirm the subscription.   The four configuration options for newsletters in Magento 2 are as follows:  Setting up the options for newsletter subscription  Making templates for newsletters  Sending Newsletter Templates.  Setting up subscribers for a newsletter.