Title: Dilli Email Validator
Author: dillilabs
Published: <strong>March 10, 2018</strong>
Last modified: December 23, 2025

---

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# Dilli Email Validator

 By [dillilabs](https://profiles.wordpress.org/dillilabs/)

[Download](https://downloads.wordpress.org/plugin/dilli-email-validator.1.7.1.0.zip)

 * [Details](https://test.wordpress.org/plugins/dilli-email-validator/#description)
 * [Reviews](https://test.wordpress.org/plugins/dilli-email-validator/#reviews)
 *  [Installation](https://test.wordpress.org/plugins/dilli-email-validator/#installation)
 * [Development](https://test.wordpress.org/plugins/dilli-email-validator/#developers)

 [Support](https://wordpress.org/support/plugin/dilli-email-validator/)

## Description

This plugin integrates with the Dilli Email Validation API (DEVA) to block fake 
or incorrectly formatted email addresses at form submission, ensuring higher-quality
leads and significantly reducing spam.

This plugin requires an API Key which can be obtained for FREE by [signing up here](https://deva.dillilabs.com/register).
Learn more about Dilli Email Validation API [here](https://www.dillilabs.com/products/email-validation-api/).

This plugin hooks directly into the WordPress core email validation function (`is_email()`),
which is used by most major form plugins. That means it works out of the box with
popular form builders like:

 * Contact Form 7
 * WPForms
 * Gravity Forms
 * Ninja Forms
 * Jetpack/Grunion contact forms
 * WordPress registration forms
 * and many others.

No need to modify your forms — just install and activate the plugin.

#### Features

 * Validates email address format. Ex: email address `fooAtdillilabs.com` is invalid
   because of missing ‘@’
 * Checks for existence of MX records of the email address domain. Ex: `foobar@dlfkdlfkf.
   co` is invalid because no MX records exist for domain dlfkdlfkf.co.
 * Checks for Disposable/Temporary email addresses. Ex: user@mailinator.com is invalid
   because mailinator.com provides temporary shared temporary email inboxes.
 * Checks for conformity with ESP (Email Service Provider) grammar rules. Ex: `bob@yahoo.
   com` is invalid because Yahoo does not allow user part (`bob` in this case) to
   be less than 4 characters.
 * Checks for profanity in user part of email address. Ex: `f***you@gmail.com` is
   invalid.
 * Checks user and domain parts of an email address for known malicious patterns.
   Ex: `jondoe@gmail.com`, `foobar@yahoo.com`, `idontwanttogive@gmail.com` and `
   noemail@gmail.com` will be treated as invalid.
 * Checks email address domain against a known blacklist.
 * Checks email address against a known blacklist of frequently used email addresses
   for spam.
 * Checks for reserved domains. Ex: example.com is a reserved domain. Therefore,
   validemail@example.com is not allowed.
 * Checks for Role-based email addresses. Ex: info@someorganization.com will be 
   treated as invalid.
 * Checks for safe domains. Restricts emails whose domains represents sites with
   adult content.
 * Checks for non-business email address. Ex: *@gmail.com, *@yahoo.com, *@hotmail.
   com email addresses will be treated as invalid.
 * Checks the IP address of the user submitting the form against a known list of
   malicious IP addresses.
 * Add custom blocklist. You may request certain domains, emails and users to be
   blocked.

#### Available Languages

 * English
 * German (Deutsche)

## Screenshots

 * [[
 * Configuration under WP-Admin Dashboard->Settings->Email Validation
 * [[
 * Email field validation in Contact Form 7 using Dilli Email Validator.

## Installation

 1. Unzip and upload the `dilli-email-validator` folder to the `/wp-content/plugins/`
    directory.
 2. Activate the **Dilli Email Validator** plugin through the ‘Plugins’ page in WordPress.
 3. Configure the plugin by going to `Settings > Email Validation` page.
 4. Get API Key by signing up with [Dilli Email Validation API](https://www.dillilabs.com/products/email-validation-api/).
 5. Paste your API key in WP-ADMIN at `Settings > Email Validation` page, verify it
    and then Save changes.

## FAQ

### Where do I obtain the API key?

Register instantly for FREE with [Dilli Email Validation API](https://deva.dillilabs.com/register)
to receive your API key

### Is there a dashboard where I can track valid and invalid emails?

Yes, you may track it [here](https://deva.dillilabs.com). The dashboard URL is also
accessible from within the WordPress dashboard on Settings->Email Validation page.

### Will this work with Contact Form 7?

Yes.

### Will this work with Ninja Form?

Yes.

### Will this work with Gravity Form?

Yes.

### Will this work with Jetpack/Grunion Form?

Yes.

### Will this work with Elementor Form?

Yes, if you have Elementor Pro.

### Can I use the same API key on different websites ?

Yes.

### How can I whitelist certain email addresses ?

You can do so under plugin settings. See ‘Whitelist’ field.

### Can I add a custom black list of email addresses?

Yes. Just e-mail us the e-mails you want blocked at support@dillilabs.com.

## Reviews

![](https://secure.gravatar.com/avatar/d750475678be241c460ab0f679f6dba59d87d680e6f28112762c3aaf7f95eed2?
s=60&d=retro&r=g)

### 󠀁[Indispensable tool](https://wordpress.org/support/topic/indispensable-tool-9/)󠁿

 [morrisayoder](https://profiles.wordpress.org/morrisayoder/) November 16, 2024

I tried the email validator this year and it works great. I think I’ll be keeping
it for my site. The customer support is quick and helpful as well.

![](https://secure.gravatar.com/avatar/5d482a5862b47970a307f7a7c7070a2ba227213ab344d803ba447ebcebc83ef3?
s=60&d=retro&r=g)

### 󠀁[good](https://wordpress.org/support/topic/good-8404/)󠁿

 [Bam Dorner](https://profiles.wordpress.org/musociety/) March 8, 2024

good!

![](https://secure.gravatar.com/avatar/7e0066efc19c3588f596c83d72294476df2644d90da2bb799337f0d1aeaef6ab?
s=60&d=retro&r=g)

### 󠀁[Made Website Painfully Slow](https://wordpress.org/support/topic/made-website-painfully-slow/)󠁿

 [ckao1030](https://profiles.wordpress.org/ckao1030/) May 7, 2021 1 reply

Plugin made my admin panel 10x slower, and page loads twice as long. Terrible.

![](https://secure.gravatar.com/avatar/6d00a53181a248b7d0a7c09b5c538f53edf645384569f245c86f9bd3e4189a28?
s=60&d=retro&r=g)

### 󠀁[Superb Addon](https://wordpress.org/support/topic/superb-addon/)󠁿

 [mandavya2014](https://profiles.wordpress.org/mandavya2014/) March 12, 2021

Very Good

![](https://secure.gravatar.com/avatar/2619aa23656e134a9f63bd3b7acf59826a34a8fb9f35a39522d422e169972df2?
s=60&d=retro&r=g)

### 󠀁[Awesome Plugin!!!](https://wordpress.org/support/topic/awesome-plugin-5513/)󠁿

 [gcho93](https://profiles.wordpress.org/gcho93/) November 18, 2020 1 reply

We were getting a lot of spam emails and invalid emails from our lead generation
tools, and this awesome plugin fixed those issues in less than 10 minutes! Thank
you so much for creating such an awesome tool, and for making my life so much easier!

![](https://secure.gravatar.com/avatar/0fe88900a56df7a808f0ab8e59ea338b4ea1609c7239208be73fda38f51e5520?
s=60&d=retro&r=g)

### 󠀁[Highly recommended!](https://wordpress.org/support/topic/highly-recommended-447/)󠁿

 [tanasieeugenandrei](https://profiles.wordpress.org/tanasieeugenandrei/) October
21, 2020

Works like magic. Easy to install. Highly recommended.

 [ Read all 15 reviews ](https://wordpress.org/support/plugin/dilli-email-validator/reviews/)

## Contributors & Developers

“Dilli Email Validator” is open source software. The following people have contributed
to this plugin.

Contributors

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

[Translate “Dilli Email Validator” into your language.](https://translate.wordpress.org/projects/wp-plugins/dilli-email-validator)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/dilli-email-validator/),
check out the [SVN repository](https://plugins.svn.wordpress.org/dilli-email-validator/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/dilli-email-validator/)
by [RSS](https://plugins.trac.wordpress.org/log/dilli-email-validator/?limit=100&mode=stop_on_copy&format=rss).

## Meta

 *  Version **1.7.1.0**
 *  Last updated **3 months ago**
 *  Active installations **100+**
 *  WordPress version ** 3.6.0 or higher **
 *  Tested up to **6.9.4**
 *  PHP version ** 7.4 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/dilli-email-validator/)
 * Tags
 * [email address validation](https://test.wordpress.org/plugins/tags/email-address-validation/)
   [email checker](https://test.wordpress.org/plugins/tags/email-checker/)[email validation](https://test.wordpress.org/plugins/tags/email-validation/)
   [email validator](https://test.wordpress.org/plugins/tags/email-validator/)[email verification](https://test.wordpress.org/plugins/tags/email-verification/)
 *  [Advanced View](https://test.wordpress.org/plugins/dilli-email-validator/advanced/)

## Ratings

 4.7 out of 5 stars.

 *  [  14 5-star reviews     ](https://wordpress.org/support/plugin/dilli-email-validator/reviews/?filter=5)
 *  [  0 4-star reviews     ](https://wordpress.org/support/plugin/dilli-email-validator/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/dilli-email-validator/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/dilli-email-validator/reviews/?filter=2)
 *  [  1 1-star review     ](https://wordpress.org/support/plugin/dilli-email-validator/reviews/?filter=1)

[Add my review](https://wordpress.org/support/plugin/dilli-email-validator/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/dilli-email-validator/reviews/)

## Contributors

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

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/dilli-email-validator/)