WPBruiser will protect all your sign up forms and will reject all fake  subscribers before adding them to your MailPoet lists. By having WPBruiser protecting your subscription forms you don’t even have to enable Signup Confirmation. Only real people will be able to subscribe.

Installing WPBruiser – MailPoet Extension

• In case you don’t already have WPBruiser installed, go to Dashboard -> Plugins -> Add New
• Search for WPBruiser in the provided box , and click “Install Now”
• After the installation finishes, click “Activate” and you’re ready to configure WPBruiser

The WPBruiser – MailPoet extension is just like a regular WordPress plugin and the installation is almost exactly the same process. Once the extension is downloaded you can follow the steps below:

• Go to Dashboard -> Plugins -> Add New
• Choose the “Upload” option located at the top of the page
• Click “Choose File” and navigate to the “zip” file you’ve downloaded
• Click “Install Now”
• After the installation finishes, click “Activate”
• Go to Dashboard -> WPBruiser -> Others
• Activate protection for MailPoet