Tag của Plugin: prevent spam
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Contact Form 7 Spam Killer
"Contact Form 7 Spam Killer" is a advance spam blocker that will help to prevent unwanted spam for your Contact Form 7 plugin.
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WordPress Spam Blocker | Stop Spam for Contact Form 7, WP Forms and Formidable Forms
WordPress SPAM Blocker, formerly Contact Form 7 Manual Spam Blocker, is an easy-to-use plugin to block all those spammers who manually fill out forms …