Email Validator


DeBounce email validation plugin allows you to validate emails on all wordpress forms and make sure they really exist before submission. This plugin uses API platform.

The plugin enhances the is_email() function of WordPress and easily integrate with it. This plugin perfectly works with:

  • Contact Form 7
  • Gravity Forms
  • WordPress comments
  • WordPress registration forms
  • WooCommerce
  • Ninja Forms
  • Jetpack/Grunion
  • and with any other form which uses the is_email() function (no changes required).

The plugin can also be integrated into 3rd party forms that do not use the is_email() function.

What this plugin do?

Based of DeBounce API documentation, this engine perform the following checks:

  • DNS validation, including MX record lookup
  • Disposable email address detection
  • Misspelled domain detection to prevent Typosquatting
  • Syntax verification (IETF/RFC standard conformance)
  • Temporary unavailability detection
  • Mailbox existence checking
  • Catch-All testing
  • Greylisting detection
  • SMTP connection and availability checking

The plugin requires an API Key to perform. You can get a free API by clicking Register on DeBounce.

DeBounce don’t send any email to the recipient address during the entire validation process. All processing is done on it’s servers, your IP addresses and domains are not affected in any way by the DeBounce service. So, your IP or domains never get blacklisted, since this plugin never use them.

DeBounce really cares about data protection and user privacy and never store any emails called from API. For more information, please read the following links:
* DeBounce GDPR Compliancy
* DeBounce Privacy Policy


  • Plugin page.


I have been using this plugin for the last 10 months. It saved us from 8,260 invalid and disposable email addresses. Nice job from DeBounce.
Don't use this plugin. You have to manually set notification for credits, otherwise your customers' email address will be automatically blocked by placing an order. Author don't let you delete you account once created. Not professional!
Considerably cheaper than other providers and was rather simple to setup, now I can stop invalid domains and those 5 min email accounts.
Before installing the the plugin I read the whole plugin text and there was mentioned that this plugin uses a free Api. Only after installing the plugin I found out that I can't use use this free Api because it only validates 100 emails per month. So I had to uninstall. It's better to be open about these things on the main plugin page. Now I'm disappointed.
Tried everything on the market. This is the only Email Validator that works for the affordable price. There are no free validator services - forget about that. It cheap and works great. Looked for something similar for years! Would recommend to everyone.

貢献者と開発者 Email Validator はオープンソースソフトウェアです。以下の人々がこのプラグインに貢献しています。


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