Open Source Self-Hosted Email SMTP

Check If Email Exists

Verify email address existence without sending mail using Rust

Email SMTP Email Verification API Email Validation API Email Verifier Email Verification Email Validation

docker postgresql rust Warp

Visit Website Repository Main Repository Official Documentation

Screenshots

A closer look at the product interface and key surfaces.

5 images

At a glance

Primary use case: Verify email address existence without sending mail using Rust
Best for: Email SMTP — Email SMTP, Email Verification API
Stack: docker, postgresql, rust, Warp
License: NOASSERTION
Maintenance: 1 month ago
Access: Open source · Self-hosted
Documentation path: https://reacherdocs.no2bounce.com/

Resource map

Website

https://github.com/reacherhq/check-if-email-exists

Repository

https://github.com/reacherhq/check-if-email-exists

Documentation

https://reacherdocs.no2bounce.com/

Source

https://github.com/reacherhq/check-if-email-exists

About this tool

Check If Email Exists is a high performance utility for validating email inboxes without sending messages. It features a robust HTTP backend and CLI written in Rust to perform deep SMTP verification and syntax checks at scale.

Repository

Stars

8,677

Forks

619

Issues

License

NOASSERTION

Last Push

1 month ago

Features

Validates email existence without sending actual messages by performing deep SMTP checks.
Includes a high-performance HTTP backend compatible with Docker for easy integration.
Provides a standalone CLI tool for local email validation directly from the terminal.