Do you want more traffic?

Turn Comment author into Email Subscriber

We can add a checkbox for Email Subscription.

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Step 1. 

Install & Activate  Fluent CRM plugin Follow Setup Wizard Create a list with tag

Step 2. 

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Go to General Settings

Step 3. 

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Go to Comment Form Subscription Settings

Follow these settings

Bonus Tip

Use Fluent SMTP with AWS SES for the reliable email delivery.