412 Open source projects that are alternatives of or similar to Maddy

Insular email distribution - mail server as Docker images

mailcow: dockerized - 🐮 + 🐋 = 💕

A fast, highly extensible, and event driven SMTP server

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

small mail server

The Hoa\Mail library.

Simple, modern & fast web-based email client

⚡️Arduino Mail Client Library to send, read and get incoming mail notification for ESP32, ESP8266 and SAMD21 devices. The library also supported other Arduino devices using Clients interfaces e.g. WiFiClient, EthernetClient, and GSMClient.

Self-hosted server for the ProtonMail client

✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat

Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.

A third-party, open-source ProtonMail CardDAV, IMAP and SMTP bridge

IMAP, POP3 and SMTP clients for Dart developers. Contains both low level as well as a high level API.

Skirnir Email Server

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

Fullstack, security focused mailserver based on OpenSMTPD for OpenBSD using ansible

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

Library to send e-mails over different transports and protocols (like SMTP and IMAP) using immutable messages and streams. Also includes SMTP server.

Emails at the heart of your business logic!

Hermes Secure Email Gateway is a Free Open Source Ubuntu 18.04 or 20.04 Server based Email Gateway that provides Spam, Virus and Malware protection, full in-transit and at-rest email encryption as well as email archiving. It features the latest email authentication techniques such as SPF, DKIM and DMARC.

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

asynchronous library for sending and receiving mail via fs2._

Run ProtonMail Bridge in a docker container

Postfix SMTP relay docker image

📩🛡 Email privacy. Anonymously send and receive with alias forwarding.

Command-line interface for email management

A parser for SPF and DMARC DNS records

End-to-end encrypted email for the mesh networking age

Poste.io plugin for Dokku

A lightweight SMTP mail library

Fake SMTP server that prints emails to stdout

SMTP-proxy that DKIM-signs e-mails before submission to an upstream SMTP-server.

A cross-platform IMAP library for .NET, supporting .Net 2.0 - 4.5, Mono and Windows Phone

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

mailio is a cross platform C++ library for MIME format and SMTP, POP3 and IMAP protocols. It is based on standard C++ 17 and Boost library.

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.

Zmail makes it easier to send and retrieve emails in python3

nodejs library to listen incoming mail

Official master for the Greenmail project

SMTP (email) server with a focus on simplicity, security, and ease of operation [mirror]

Golang package for send email. Support keep alive connection, TLS and SSL. Easy for bulk SMTP.

Delta Chat Rust Core library, used by Android/iOS/desktop apps and bindings

The legitimate email replacement — n-identity, decentralized, store-and-forward, open protocol, open source. (Server)

Event-driven networking engine written in Python.

💌 A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

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

Email-based instant messaging for Desktop.

💌 Mail app for Nextcloud

Catches mail and serves it through a dream.

Disposable webmail server (similar to Mailinator) with built in SMTP, POP3, RESTful servers; no DB required.

📤 An SMTP client & server library written in Go

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

Cypht: Lightweight Open Source webmail written in PHP and JavaScript

Sendria (formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.

Eventum Issue Tracking System

📥 An IMAP library for clients and servers

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

A Python script for incremental backups of IMAP mailboxes

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 lightweight PHP SMTP mail sender