Dilli vs QuickEmailVerification

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. Learn more about Dilli Email Validation API here. 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: [email protected] is invalid because no MX records exist for domain dlfkdlfkf.co. Checks for Disposable/Temporary email addresses. Ex: [email protected] is invalid because mailinator.com provides temporary shared temporary email inboxes. Checks for conformity with ESP (Email Service Provider) grammar rules. Ex: [email protected] 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***[email protected] is invalid. Checks user and domain parts of an email address for known malicious patterns. Ex: [email protected], [email protected], [email protected] and [email protected] 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, [email protected] is not allowed. Checks for Role-based email addresses. Ex: [email protected] 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)

An email verification plugin by QuickEmailVerification enables you to validate and verify the email address existence in real time, before you actually send them an email. Its unique email verification system is composed of multiple different validations starting from syntax checking to the end users’ mailbox existence checking. It not only detects invalid email addresses but also detects many other types of poor email addresses which could negatively impact the email deliverability and harm your sender reputation. This plugin need a QuickEmailVerification API key to verify. You can get it from API settings page of QuickEmailVerification service. Key features Email address syntax checking Domain/MX records checking Role address detection Disposable email address (DEA) detection Free email service detection Typo detection and suggestion Accept all email checking Mailbox existence checking Supported form Plugins Contact Form 7 Formidable forms Ninja forms WooCommerce WPForms Profile Builder Contact Form by BestWebSoft Ultimate Member registration form Fluent Forms WPEverest forms MailPoet Theme My Login WP-Members Visual Form Builder PlanSo forms Buddypress registration form Any other form which uses the is_email() function This plugin works either with “is_email()” function or with any other supported form plugins. So if any supported form plugin is enabled, “is_email()” hook will automatically be disabled. To know more about email verification results, please have a look at the QuickEmailVerification knowledge base.