Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.

Th3Inspector 🕵️ Best Tool For Information Gathering 🔎

📫 Cross-language temporary (disposable/throwaway) email detection library. Covers 55 734+ fake email providers.

🚀 Configurable framework agnostic plain Ruby 📨 email validator/verifier. Verify email via Regex, DNS, SMTP and even more. Be sure that email address valid and exists.

Validates regex, typos, disposable, dns and smtp

PHP package built for Laravel to easily handle a user email verification and validate the email

Find existing email addresses by nickname using API/SMTP checking methods without user notification. Please, don't hesitate to improve cat's job! 🐱🔎 📬

Tiny, fast, efficient, feature rich Javascript library to detect links / URLs / Emails in text and convert them to clickable HTML anchor links

SwiftCop is a validation library fully written in Swift and inspired by the clarity of Ruby On Rails Active Record validations.

A PHP library for performing email addresses validation via SMTP

The EmailAddress Gem to work with and validate email addresses.

An easy to use, accurate-ish & extensible email validation library for PHP 7+ 📧

A simple (but correct) .NET class for validating email addresses

A simple Dart class for validating email addresses (syntax) without using RegEx 📧

📮 An ultratiny (1.9 KB) and fast JavaScript email checker to reduce users typing a wrong email. Written in TypeScript. Enterprise-grade.

Some great resources to gather OSINT on Email Addresses & Usernames. Alternatively check the exposure of your Email & Username.

Provides email verification on the go.

List of disposable email domains. You can use it to block fake users on your newsletter.

Android library for fast and simple string validation

verify-email can verify any email address by efficiently checking the domain name and pinging the handler to verify its existence.