Title: FixBounce Email Verifier
Author: fixbounce
Published: <strong>5 de abril de  2026</strong>
Last modified: 5 de abril de  2026

---

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# FixBounce Email Verifier

 Por [fixbounce](https://profiles.wordpress.org/fixbounce/)

[Descargar](https://downloads.wordpress.org/plugin/fixbounce-email-verifier.1.0.0.zip)

 * [Detalles](https://es-ar.wordpress.org/plugins/fixbounce-email-verifier/#description)
 * [Valoraciones](https://es-ar.wordpress.org/plugins/fixbounce-email-verifier/#reviews)
 *  [Instalación](https://es-ar.wordpress.org/plugins/fixbounce-email-verifier/#installation)
 * [Desarrollo](https://es-ar.wordpress.org/plugins/fixbounce-email-verifier/#developers)

 [Soporte](https://wordpress.org/support/plugin/fixbounce-email-verifier/)

## Descripción

**FixBounce Email Verifier** checks if every email address on your site actually
exists — not just if it looks valid, but if the mailbox is real. Install, activate,
and you’re protected immediately. No account needed.

#### How It Works

Every email submitted on your site (registration, comment, contact form, checkout)
is verified through the FixBounce API:

 1. **Syntax check** — Is the email properly formatted?
 2. **Disposable domain check** — Is it a throwaway address? (350+ domains blocked)
 3. **MX record check** — Does the domain have a mail server?
 4. **SMTP mailbox verification** — Does the actual mailbox exist?
 5. **Catch-all detection** — Does the domain accept any address?
 6. **Deliverability score** — Deliverable, Risky, or Undeliverable

All 6 checks run on every verification. The only difference between plans is how
many verifications per day.

#### Plans

 * **Trial (no signup)** — 5 verifications/day. All features. Install and go.
 * **Free account** — 10 verifications/day. Create a free account at [fixbounce.com](https://fixbounce.com)
   and add your API key.
 * **Pro ($29/mo)** — 500 verifications/day + bulk user verification.

#### What Gets Protected

 * **Registration** — Blocks signups with fake or non-existent emails
 * **Comments** — Stops comments from disposable or invalid addresses
 * **Contact forms** — Real-time validation on Contact Form 7, WPForms, Gravity 
   Forms, Elementor, Ninja Forms, and any HTML form
 * **WooCommerce** — Verifies billing email before order is placed

#### When the daily limit is reached

Verification pauses until the next day. Forms, registrations, and comments work 
normally — they just skip the email check. A notice appears in the admin dashboard
with upgrade options.

#### Privacy

Only the email address is sent to the FixBounce API for verification. No other user
data is transmitted. See our [privacy policy](https://fixbounce.com/privacy).

## Instalación

 1. Upload the `fixbounce-email-verifier` folder to `/wp-content/plugins/`
 2. Activate the plugin through the ‘Plugins’ menu
 3. Go to Settings  FixBounce
 4. Toggle the features you want — that’s it

No API key is required. You get 5 free verifications per day immediately.

To increase your limit, create a free account at [fixbounce.com](https://fixbounce.com),
copy your API key from Dashboard  API Keys, and paste it in Settings  FixBounce.

## Preguntas frecuentes

### Do I need to create an account?

No. The plugin works immediately with 5 verifications per day. No signup, no API
key, no configuration beyond toggling features on. Create an account later to get
10/day (free) or 500/day (Pro).

### What happens when I hit the daily limit?

Verification pauses — forms, registrations, and comments continue to work normally
without email checking. A notice appears in your admin dashboard. The limit resets
every 24 hours.

### What does each verification check?

Every single verification runs all 6 checks: email syntax, disposable domain (350
+ blocked), MX record, SMTP mailbox existence, catch-all detection, and deliverability
scoring. There are no “basic” vs “premium” checks — you always get the full verification.

### Does it work with my form plugin?

Yes. Real-time validation auto-detects any email input field. Works with Contact
Form 7, WPForms, Gravity Forms, Elementor, Ninja Forms, Formidable, and any HTML
form.

### Will it slow down my site?

No. Verification runs via AJAX after the user finishes typing (800ms debounce). 
Zero impact on page load speed.

### Is it compatible with Akismet?

Yes. FixBounce verifies email addresses, Akismet analyzes content. They complement
each other.

### Does it work with WooCommerce?

Yes. Toggle “WooCommerce checkout” in settings. Bad billing emails get blocked before
the order is placed.

## Reseñas

No hay reseñas para este plugin.

## Colaboradores y desarrolladores

“FixBounce Email Verifier” es un software de código abierto. Las siguientes personas
han colaborado con este plugin.

Colaboradores

 *   [ fixbounce ](https://profiles.wordpress.org/fixbounce/)

[Traduce “FixBounce Email Verifier” a tu idioma.](https://translate.wordpress.org/projects/wp-plugins/fixbounce-email-verifier)

### ¿Interesado en el desarrollo?

[Revisa el código](https://plugins.trac.wordpress.org/browser/fixbounce-email-verifier/),
echa un vistazo al [repositorio SVN](https://plugins.svn.wordpress.org/fixbounce-email-verifier/),
o suscríbete al [log de desarrollo](https://plugins.trac.wordpress.org/log/fixbounce-email-verifier/)
por [RSS](https://plugins.trac.wordpress.org/log/fixbounce-email-verifier/?limit=100&mode=stop_on_copy&format=rss).

## Registro de cambios

#### 1.0.0

 * Initial release
 * Full SMTP email verification (5/day free, no signup)
 * Registration, comment, form, and WooCommerce protection
 * Real-time inline form validation
 * Daily usage meter with upgrade prompts
 * API key integration for higher limits

## Meta

 *  Versión **1.0.0**
 *  Última actualización **hace 6 meses**
 *  Instalaciones activas **Menos de 10**
 *  Versión de WordPress ** 5.0 o superior **
 *  Testeado hasta **6.9.10**
 *  Versión de PHP ** 7.4 o superior **
 *  Idioma
 * [English (US)](https://wordpress.org/plugins/fixbounce-email-verifier/)
 * Etiquetas:
 * [disposable email](https://es-ar.wordpress.org/plugins/tags/disposable-email/)
   [email validation](https://es-ar.wordpress.org/plugins/tags/email-validation/)
   [email verification](https://es-ar.wordpress.org/plugins/tags/email-verification/)
   [spam protection](https://es-ar.wordpress.org/plugins/tags/spam-protection/)
 *  [Vista avanzada](https://es-ar.wordpress.org/plugins/fixbounce-email-verifier/advanced/)

## Valoraciones

Todavía no se enviaron reseñas.

[Your review](https://wordpress.org/support/plugin/fixbounce-email-verifier/reviews/#new-post)

[Ver todas las reseñas](https://wordpress.org/support/plugin/fixbounce-email-verifier/reviews/)

## Colaboradores

 *   [ fixbounce ](https://profiles.wordpress.org/fixbounce/)

## Soporte

¿Tenés algo que decir? ¿Necesitás ayuda?

 [Ver el foro de asistencia](https://wordpress.org/support/plugin/fixbounce-email-verifier/)