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)

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

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

Stalwart SMTP Server

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

DKIM Verifier Extension for Mozilla Thunderbird

E-mail delivery library for Rust with DKIM support

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

Awesome Opensource Email Resources

Simple and full-featured mail server using Docker