A cross-platform .NET library for IMAP, POP3, and SMTP.

Insular email distribution - mail server as Docker images

A fast, highly extensible, and event driven SMTP server

✉️ Composable all-in-one mail server.

A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.

⚠️ UNMAINTAINED - Simple and full-featured mail server using Docker

An email spoofing testing tool that aims to bypass SPF/DKIM/DMARC and forge DKIM signatures.🍻

Simple API, Complex Emails (Jakarta Mail smtp wrapper)

A set of ansible scripts to build a personal mail server / private cloud / etc.

Simple SMTP server / postfix null relay host for your Docker and Kubernetes containers. Based on Alpine Linux.

Stalwart SMTP Server

DKIM Verifier Extension for Mozilla Thunderbird

E-mail delivery library for Rust with DKIM support

Verify emails with the same trust assumption as the email domain i.e. without trusting our server (because it doesnt exist)

Convert dmarc reports from xml to human-readable formats

A Go library and tools for DKIM, DMARC and Authentication-Results

Internet.nl toolbox - how-to's for modern mail security standards (DMARC, DKIM, SPF and DANE)

Internet standards compliance test suite

Simple and full-featured mail server using Docker

Command line utility and a Node.js library for email authentication