249 Open source projects that are alternatives of or similar to share

A fast, highly extensible, and event driven SMTP server

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

✉️ Composable all-in-one mail server.

Insular email distribution - mail server as Docker images

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

Swaks - Swiss Army Knife for SMTP

IMAP or SMTP honeypot written in Golang

VMime Mail Library

A reimplementation of the Python stdlib smtpd.py based on asyncio.

🌰️🐿️ SquirrelMail GitHub Repository (PHP 7-OK!)

Rust implementation of catapulte email sender

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

An elegant MIME/SMTP email library with support for attachments

A self hosted REST API for message delivery

A light-weight, modular, message representation and mail delivery framework for Python.

A simple, coroutine based Kotlin Email API for both client- and server-side projects

Lightweight SMTP client written in Go

Simple Python API that that allows you to send texts via SMTP with a best effort approach and process replies via IMAP

Top geek's chindogu - personal assistant over satellite/telephone/SMS/chatbot, plus web infrastructure servers (web & mail, ad-free DNS, web proxy, SNMP, etc)

Fat-Free Sugar Mailer Plugin

A Lightweight High Performance ESMTP email server

SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

Send email in Python conveniently for gmail using yagmail

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.

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

📝 Go INI config management. support multi file load, data override merge. parse ENV variable, parse variable reference. Dotenv file parse and loader. INI配置读取管理，支持多文件加载，数据覆盖合并, 解析ENV变量, 解析变量引用。DotEnv 解析加载

Mini SMTP server written in golang

Golang SMTP server

A python package designed to make sending messages easy and efficient!

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

Magento 2 SMTP Extension helps the owner of store simply install SMTP (Simple Mail Transfer Protocol) server which transmits the messages into codes or numbers.

NodeJs code for Firing Email via AWS-Lambda and SES

Fast Advanced Spam Analysis Tool

Parse Server Module to easy send emails via SMTP with a customizable template option

Makes sending emails easy and DRY — For Python 3.

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

✅ A Go library for email verification without sending any emails.

Application config settings abstraction layer.

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

Smtp server for mass emailing, managing email lists and more. Built on .NET Core. Linux, MAC and Windows compatible.

OX COI Messenger - a Flutter app for the COI (Chat Over IMAP) standard

email-actions is a tiny SMTP server with a rules based engine to trigger any actions (notifications/commands etc) based on the emails sent to this server

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

Mirrored from GitLab! Monitoring and automation for Open Source email servers, starting with Postfix. Please do not submit issues or PRs here - join us at: https://gitlab.com/lightmeter

mailproxy is a simple SMTP proxy. It receives emails through an unencrypted, unauthenticated SMTP interface and retransmits them through a remote SMTP server that requires modern features such as encryption and/or authentication. mailproxy is primarily useful for enabling email functionality in legacy software that only supports plain SMTP.

golang library for smtp based email validation

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

短信转发器——监控Android手机短信、来电、APP通知，并根据指定规则转发到其他手机：钉钉群自定义机器人、钉钉企业内机器人、企业微信群机器人、飞书机器人、企业微信应用消息、邮箱、bark、webhook、Telegram机器人、Server酱、PushPlus、手机短信等。包括主动控制服务端与客户端，让你轻松远程发短信、查短信、查通话、查话簿、查电量等。（V3.0 新增）PS.这个APK主要是学习与自用，如有BUG请提ISSUE，同时欢迎大家提PR指正

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

small mail server

Swift SMTP client

An SMTP gateway for Apprise notifications.

Mailozaurr is a PowerShell module that aims to provide SMTP, POP3, IMAP and probably some other ways to interact with Email. Underneath it uses MimeKit and MailKit libraries written by Jeffrey Stedfast.

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

Reusable application for Django introducing a message delivery framework

mailing lists - the unix way

Papercut SMTP -- The Simple Desktop Email Server

Mail Analyzing Interface for email bounce: A Ruby library to parse RFC5322 bounce mails and generating structured data as JSON from parsed results. Ruby version of Sisimai: an error mail analyzer.

Simple and full-featured mail server using Docker

Blackhole is an MTA written on top of asyncio, utilising async and await statements that dumps all mail it receives to /dev/null.