The Top 102 Smtp Open Source Projects

Awesome Open Source

Awesome Open Source

Combined Topics

Advertising 📦 10

Application Programming Interfaces 📦 124

Applications 📦 192

Artificial Intelligence 📦 78

Blockchain 📦 73

Build Tools 📦 113

Cloud Computing 📦 80

Code Quality 📦 28

Collaboration 📦 32

Command Line Interface 📦 49

Community 📦 83

Companies 📦 60

Compilers 📦 63

Computer Science 📦 80

Configuration Management 📦 42

Content Management 📦 175

Control Flow 📦 213

Data Formats 📦 78

Data Processing 📦 276

Data Storage 📦 135

Economics 📦 64

Frameworks 📦 215

Graphics 📦 110

Hardware 📦 152

Integrated Development Environments 📦 49

Learning Resources 📦 166

Libraries 📦 129

Lists Of Projects 📦 22

Machine Learning 📦 347

Mapping 📦 64

Marketing 📦 15

Mathematics 📦 55

Messaging 📦 98

Networking 📦 315

Operating Systems 📦 89

Operations 📦 121

Package Managers 📦 55

Programming Languages 📦 245

Runtime Environments 📦 100

Science 📦 42

Security 📦 396

Social Media 📦 27

Software Architecture 📦 72

Software Development 📦 72

Software Performance 📦 58

Software Quality 📦 133

Text Editors 📦 49

Text Processing 📦 136

User Interface 📦 330

User Interface Components 📦 514

Version Control 📦 30

Virtualization 📦 71

Web Browsers 📦 42

Web Servers 📦 26

Web User Interface 📦 210

The Top 102 Smtp Open Source Projects

Categories > Messaging > Smtp

Phpmailer ⭐ 16,507

The classic email sending library for PHP

Postal ⭐ 10,307

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

Mailinabox ⭐ 10,063

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.

Docker Mailserver ⭐ 7,018

A fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) using Docker.

Mailcatcher ⭐ 5,268

Catches mail and serves it through a dream.

Listmonk ⭐ 4,537

High performance, self-hosted newsletter and mailing list manager with a modern dashboard. Single binary app.

Twisted ⭐ 4,240

Event-driven networking engine written in Python.

Mailkit ⭐ 4,025

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

Haraka ⭐ 3,884

A fast, highly extensible, and event driven SMTP server

Rainloop Webmail ⭐ 3,446

Simple, modern & fast web-based email client

Maildev ⭐ 2,770

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

Mailu ⭐ 2,622

Insular email distribution - mail server as Docker images

Maddy ⭐ 2,267

✉️ Composable all-in-one mail server.

Hermes ⭐ 2,242

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

Neomutt ⭐ 2,140

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

Yagmail ⭐ 1,996

Send email in Python conveniently for gmail using yagmail

Go Guerrilla ⭐ 1,946

Mini SMTP server written in golang

Free Email Forwarding ⭐ 1,859

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

Papercut Smtp ⭐ 1,844

Papercut SMTP -- The Simple Desktop Email Server

Magma ⭐ 1,706

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.

Fluentemail ⭐ 1,613

All in one email sender for .NET. Supports popular senders (SendGrid, MailGun, etc) and Razor templates.

Gopherus ⭐ 1,292

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

Hedwig ⭐ 1,097

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

Mailslurper ⭐ 945

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

a mailer library for Rust

Inbucket ⭐ 695

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

Smtp Server ⭐ 663

Create custom SMTP servers on the fly

Go Smtp ⭐ 662

📤 An SMTP client & server library written in Go

Cypht: Lightweight Open Source webmail written in PHP and JavaScript

Hydroxide ⭐ 606

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

Exim Mail Transport Agent - source, testsuite and documentation

Deltachat Desktop ⭐ 538

Email-based instant messaging for Desktop.

💌 Mail app for Nextcloud

Check If Email Exists ⭐ 521

Check if an email address exists without sending any email, written in Rust.

James Project ⭐ 491

Emails at the heart of your business logic!

A Python Mail Server

Computer Networking : Principles, Protocols and Practice (first and second edition, third edition is being written on https://github.com/cnp3/ebook)

Neutron ⭐ 458

Self-hosted server for the ProtonMail client

Deep Email Validator ⭐ 452

Validates regex, typos, disposable, dns and smtp

Docker Smtp ⭐ 449

SMTP docker container

Chasquid ⭐ 432

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

Greenmail ⭐ 428

Official master for the Greenmail project

Trashemail ⭐ 415

A hosted disposable email telegram bot; Extremely privacy friendly; Proudly hosted for community.

Blastula ⭐ 402

Easily send great-looking HTML email messages from R

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

Smtpserver ⭐ 388

A SMTP Server component written in C#

Smtp Validate Email ⭐ 353

A PHP library for performing email addresses validation via SMTP

Airform ⭐ 314

Functional HTML forms for Front-End Developers.

Zmail makes it easier to send and retrieve emails in python3

Deltachat Core Rust ⭐ 311

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

Espoofer ⭐ 302

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

Kamifaka ⭐ 299

一款基于VUE3.0的开源免费的卡密发卡系统，高效、稳定可靠。

Magento2 Gmail Smtp App ⭐ 282

Configure Magento 2 to send email using Google App, Gmail, Amazon Simple Email Service (SES), Microsoft Office365 and many other SMTP (Simple Mail Transfer Protocol) servers

Davmail ⭐ 259

DavMail POP/IMAP/SMTP/Caldav/Carddav/LDAP Exchange and Office 365 Gateway - Synced with main subversion repository at

Notqmail ⭐ 257

Collaborative open-source successor to qmail

Swaks - Swiss Army Knife for SMTP

Golang SMTP server

Mailyak ⭐ 245

An elegant MIME/SMTP email library with support for attachments

Magento 2 Smtp ⭐ 230

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.

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

Spamscope ⭐ 224

Fast Advanced Spam Analysis Tool

VMime Mail Library

Drymail ⭐ 219

Makes sending emails easy and DRY — For Python 3.

Hectane ⭐ 204

Lightweight SMTP client written in Go

Email Verifier ⭐ 203

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

Aiosmtpd ⭐ 200

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

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

Smsforwarder ⭐ 192

短信转发器——监控Android手机短信并根据指定规则转发到其他手机：钉钉机器人、企业微信群机器人、企业微信应用消息、邮箱、bark、webhook、Telegram机器人、Server酱等。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

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

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

A Lightweight High Performance ESMTP email server

mnm enables a new email network, via a sane, simple protocol, and client & server apps which speak it. Contributors welcome! (Server)

Docker Postfix ⭐ 173

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

Mailproxy ⭐ 171

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.

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.

Swift Smtp ⭐ 164

Swift SMTP client

Nanolist ⭐ 153

mailing lists - the unix way

Simple Mail ⭐ 138

An SMTP library written in C++ for Qt. Allows applications to send emails (MIME with text, html, attachments, inline files, etc.) via SMTP. Supports SSL and SMTP authentication.

Vscode Deploy Reloaded ⭐ 129

Recoded version of Visual Studio Code extension 'vs-deploy', which provides commands to deploy files to one or more destinations.

Qpsmtpd ⭐ 126

qpsmtpd is a flexible smtpd daemon written in Perl

Vs Deploy ⭐ 125

Visual Studio Code extension that provides commands to deploy files of a workspace to a destination.

Eventum ⭐ 124

Eventum Issue Tracking System

Nb2mail ⭐ 124

Send a notebook as an email

Bamboo_smtp ⭐ 115

An SMTP adapter for Bamboo.

Get a programmable email address. Automate what happens when you receive emails. It's like Zapier for devs who hate emails.

Smtptester ⭐ 103

small python3 tool to check common vulnerabilities in SMTP servers

Fastsitephp ⭐ 102

🌟 FastSitePHP 🌟 A Modern Open Source Framework for building High Performance Websites and API’s with PHP

Mailway installer, host your own Mailway instance

Mailmergelib ⭐ 97

MailMergeLib is a mail message client library which provides comfortable mail merge capabilities for text, inline images and attachments, as well as good throughput and fault tolerance for sending mail messages.

Opaquemail ⭐ 90

.NET email library and proxy supporting IMAP, POP3, and SMTP with S/MIME and PGP.

Netdumbster ⭐ 88

netDumbster is a .Net Fake SMTP Server clone of the popular Dumbster

Very crude and poorly written HTTP(s) and SMTP bin

Esp32 Mail Client ⭐ 79

The complete and secured Mail Client for ESP32, sending and reading the E-mail through the SMTP and IMAP servers.

Mailcore ⭐ 77

Emailing wrapper for Vapor 3 apps

A lightweight PHP SMTP mail sender

Jcabi Email ⭐ 51

Object-Oriented Email Sending Java SDK

Wp Phpmailer ⭐ 50

Provides a clean and simple way to configure the WordPress-bundled PHPMailer library, allowing you to quickly get started sending mail through a local or cloud based service of your choice

Post Smtp ⭐ 48

Next generation SMTP mailer plugin for WordPress. Trusted by over 100,000 sites.

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.

Server Accepts Email ⭐ 25

Check if an SMTP server accepts emails to a given address

1-100 of 102 projects

Advertising 📦 10

Application Programming Interfaces 📦 124

Applications 📦 192

Artificial Intelligence 📦 78

Blockchain 📦 73

Build Tools 📦 113

Cloud Computing 📦 80

Code Quality 📦 28

Collaboration 📦 32

Command Line Interface 📦 49

Community 📦 83

Companies 📦 60

Compilers 📦 63

Computer Science 📦 80

Configuration Management 📦 42

Content Management 📦 175

Control Flow 📦 213

Data Formats 📦 78

Data Processing 📦 276

Data Storage 📦 135

Economics 📦 64

Frameworks 📦 215

Graphics 📦 110

Hardware 📦 152

Integrated Development Environments 📦 49

Learning Resources 📦 166

Libraries 📦 129

Lists Of Projects 📦 22

Machine Learning 📦 347

Mapping 📦 64

Marketing 📦 15

Mathematics 📦 55

Messaging 📦 98

Networking 📦 315

Operating Systems 📦 89

Operations 📦 121

Package Managers 📦 55

Programming Languages 📦 245

Runtime Environments 📦 100

Science 📦 42

Security 📦 396

Social Media 📦 27

Software Architecture 📦 72

Software Development 📦 72

Software Performance 📦 58

Software Quality 📦 133

Text Editors 📦 49

Text Processing 📦 136

User Interface 📦 330

User Interface Components 📦 514

Version Control 📦 30

Virtualization 📦 71

Web Browsers 📦 42

Web Servers 📦 26

Web User Interface 📦 210