This extension requires your customers to validate their email address. After registering it sends an email with a verification link that customers must click before they are allowed to log in. You can still manually approve customers from admin like normal. 

Features:

• Customer registration - by editing the existing email sent to customer and will replace shortcodes {$account_login} with a verification link and {$customer_text} with verification text.
• Customer changes their email address from their account details, logs them out and send a new email to validate their new email address after changing it. Logged in customer activity and displayed in admin dashboard. 
• Customer login - if a customer tries to login without validating their email address it will show error message with link to resend. 

Install:

1. Use the 'Extension install'.
2. Opencart 3 if you get error: Error: Table 'oc_customer_verification' doesn't exist. Then you'll need to manually run SQL database queries in install.sql
3. You must have 'Approve New Customers' turn ON for the customer group. This will prevent them from being automatically logged in. 

Requirements:

1. Extension Advanced Email Templates. (Must be installed first)