A fast, highly extensible, and event driven SMTP server

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

Insular email distribution - mail server as Docker images

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

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

Simple API, Complex Emails (JavaMail smtp wrapper)

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

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

DKIM Verifier Extension for Mozilla Thunderbird

Postfix SMTP relay docker image

Library containing Email related implementations in Elixir : dkim, spf, dmark, mimemail, smtp

A Go library for DKIM, DMARC and Authentication-Results

Internet standards compliance test suite

Ansible playbooks to deploy a full featured mail server stack using Docker.

A DKIM library for JavaMail

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

ThunderSec is a security plugin for Mozilla Thunderbird that creates several pieces of additional security functionality, including DNSBL, RBL, SURBL, DKIM and SPF.

A Go library to create and verify DKIM signatures (migrated)

Setup guide for Office 365 Administrators who are unable to use ATP to configure SPF, DKIM and DMARC.

Laravel 5 MailServiceProvider decorator, providing sign outgoing emails with DKIM

Convert dmarc reports from xml to human-readable formats

Simple and full-featured mail server using Docker

Verifying a DKIM-Signature by hand

Artisanal inbound emails for every web app using nodejs

Tool to verify DKIM signatures on an mbox of emails

Golang DKIM Verifier

A collection of libraries and tools written in Go.

Another utility to analyze state of deployment of security-related email protocols.