With the Byteplant Email Validator plugin you can easily verify with a real-time live check if an email address really exists and is valid (https://ww …
As of April 2026, Byteplant Email Validator is a WordPress spam plugin with 100 active installations and a 3.8/5 rating from 9 reviews. It has been downloaded 11K+ times in total. Requires WordPress 3.0.1+ and PHP false+. Available on WordPress.org since 2016. Top alternative: Akismet Anti-spam: Spam Protection.
This plugin uses the Byteplant Email-Validator API (https://www.byteplant.com/email-validator/) for a real-time live check to find out if an email address really exists or not.
The plugin integrates seamlessly with:
The plugin can also be easily integrated into any 3rd party forms.
The Email-Validator API real-time validation process includes a live check with all of the following tests:
| WordPress | 3.0.1+ requiredTested up to 6.8.5 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.