The classic email sending library for PHP

📨 A fully featured open source mail delivery platform for incoming & outgoing e-mail

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

A fullstack but simple mailserver (smtp, imap, antispam, antivirus, ssl...) using Docker.

Catches mail and serves it through a dream.

Event-driven networking engine written in Python.

High performance, self-hosted newsletter and mailing list manager with a modern dashboard. Go + VueJS.

A fast, highly extensible, and event driven SMTP server

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

Simple, modern & fast web-based email client

📫 SMTP Server + Web Interface for viewing and testing emails during development.

Insular email distribution - mail server as Docker images

Golang package that generates clean, responsive HTML e-mails for sending transactional mail

✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.freenode.net

Send email in Python conveniently for gmail using yagmail

Mini SMTP server written in golang

The best free email forwarding for custom domains. Visit our website to get started (SMTP server)

The magma server daemon, is an encrypted email system with support for SMTP, POP, IMAP, HTTP and MOLTEN,. Additional support for DMTP and DMAP is currently in active development.

Papercut SMTP -- The Simple Desktop Email Server

.NET Core email sending

Send email to any SMTP server like a boss, in Swift and cross-platform

This tool generates gopher link for exploiting SSRF and gaining RCE in various servers

Local, web-based mail server application. Slurp mails into oblivion!

Create custom SMTP servers on the fly

📤 An SMTP client & server library written in Go

Exim Mail Transport Agent - source, testsuite and documentation