The Top 98 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 98 Smtp Open Source Projects

Categories > Messaging > Smtp

Phpmailer ⭐ 16,087

The classic email sending library for PHP

Postal ⭐ 10,174

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

Mailinabox ⭐ 9,839

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 ⭐ 6,584

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

Mailcatcher ⭐ 5,187

Catches mail and serves it through a dream.

Listmonk ⭐ 4,251

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

Twisted ⭐ 4,141

Event-driven networking engine written in Python.

Mailkit ⭐ 3,841

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

Haraka ⭐ 3,822

A fast, highly extensible, and event driven SMTP server

Rainloop Webmail ⭐ 3,387

Simple, modern & fast web-based email client

Maildev ⭐ 2,557

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

Mailu ⭐ 2,446

Insular email distribution - mail server as Docker images

Hermes ⭐ 2,158

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

Maddy ⭐ 2,122

✉️ Composable all-in-one mail server.

Neomutt ⭐ 2,054

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

Yagmail ⭐ 1,944

Send email in Python conveniently for gmail using yagmail

Go Guerrilla ⭐ 1,851

Mini SMTP server written in golang

Free Email Forwarding ⭐ 1,774

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

Papercut Smtp ⭐ 1,730

Papercut SMTP -- The Simple Desktop Email Server

Magma ⭐ 1,689

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 ⭐ 1,409

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

Gopherus ⭐ 1,213

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

Hedwig ⭐ 1,095

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

Mailslurper ⭐ 861

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

Inbucket ⭐ 669

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

a mailer library for Rust

Smtp Server ⭐ 640

Create custom SMTP servers on the fly

Cypht: Lightweight Open Source webmail written in PHP and JavaScript

Go Smtp ⭐ 616

📤 An SMTP client & server library written in Go

Hydroxide ⭐ 537

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

Exim Mail Transport Agent - source, testsuite and documentation

💌 Mail app for Nextcloud

Deltachat Desktop ⭐ 473

Email-based instant messaging for Desktop.

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)

James Project ⭐ 470

Emails at the heart of your business logic!

Check If Email Exists ⭐ 458

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

Neutron ⭐ 448

Self-hosted server for the ProtonMail client

Docker Smtp ⭐ 429

SMTP docker container

Greenmail ⭐ 412

Official master for the Greenmail project

Chasquid ⭐ 412

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

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

Trashemail ⭐ 394

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

Deep Email Validator ⭐ 386

Validates regex, typos, disposable, dns and smtp

Blastula ⭐ 376

Easily send great-looking HTML email messages from R

Smtpserver ⭐ 365

A SMTP Server component written in C#

Smtp Validate Email ⭐ 342

A PHP library for performing email addresses validation via SMTP

Sockethub ⭐ 327

A protocol gateway for the Web.

Zmail makes it easier to send and retrieve emails in python3

Airform ⭐ 300

Functional HTML forms for Front-End Developers.

Magento2 Gmail Smtp App ⭐ 276

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

Deltachat Core Rust ⭐ 250

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

Notqmail ⭐ 248

Collaborative open-source successor to qmail

Espoofer ⭐ 247

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

Golang SMTP server

Mailyak ⭐ 244

An elegant MIME/SMTP email library with support for attachments

Davmail ⭐ 228

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

Magento 2 Smtp ⭐ 224

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.

Swaks - Swiss Army Knife for SMTP

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

Drymail ⭐ 219

Makes sending emails easy and DRY — For Python 3.

Spamscope ⭐ 215

Fast Advanced Spam Analysis Tool

VMime Mail Library

Kamifaka ⭐ 200

一款基于VUE3.0的开源免费的卡密发卡系统，高效、稳定可靠。

Hectane ⭐ 193

Lightweight SMTP client written in Go

Top geek's software kit - personal assistant over satellite/telephone/SMS/chatbot, plus web infrastructure servers (DNS, HTTP, SMTP, SNMP)

Aiosmtpd ⭐ 185

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

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

Mailproxy ⭐ 169

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 ⭐ 155

Swift SMTP client

Nanolist ⭐ 148

mailing lists - the unix way

Docker Postfix ⭐ 147

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

Email Verifier ⭐ 146

A Go library for email verification without sending any emails.

Vscode Deploy Reloaded ⭐ 129

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

Simple Mail ⭐ 124

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.

Qpsmtpd ⭐ 121

qpsmtpd is a flexible smtpd daemon written in Perl

Vs Deploy ⭐ 121

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

Nb2mail ⭐ 119

Send a notebook as an email

Eventum ⭐ 115

Eventum Issue Tracking System

Bamboo_smtp ⭐ 108

An SMTP adapter for Bamboo.

Smtptester ⭐ 100

small python3 tool to check common vulnerabilities in SMTP servers

Fastsitephp ⭐ 97

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

Mailmergelib ⭐ 94

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 ⭐ 91

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

Netdumbster ⭐ 86

netDumbster is a .Net Fake SMTP Server clone of the popular Dumbster (http://quintanasoft.com/dumbster/)

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

Mailcore ⭐ 77

Emailing wrapper for Vapor 3 apps

Esp32 Mail Client ⭐ 75

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

A lightweight PHP SMTP mail sender

Jcabi Email ⭐ 51

Object-Oriented Email Sending Java SDK

Post Smtp ⭐ 46

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

Wp Phpmailer ⭐ 46

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

Mqtt_via_esp01 ⭐ 23

TCP/UDP Applicaton for UNO/MEGA/STM32 using ESP8266's AT firmware.

Server Accepts Email ⭐ 23

Check if an SMTP server accepts emails to a given address

Getting App Store and Google Play's review and notify to either slack or email.

1-98 of 98 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