How to configure subscription form WP?

Hello! Put theme on WordPress OnePress. It is a form of newsletter subscription in the theme settings it is necessary to specify a reference to a service subscription. Some plugin need to install or how to configure it?
You need to mail the signatories came a letter that he signed and the unsubscribe button
July 2nd 19 at 17:29
1 answer
July 2nd 19 at 17:31
If I understand you correctly, you need to register mail subscription HERE. The user manual can Google.

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