1825 Open source projects that are alternatives of or similar to Papercut Smtp

Collaborative open-source successor to qmail

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

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

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.

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

A Python Mail Server

Golang SMTP server

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.

Catches mail and serves it through a dream.

Exim Mail Transport Agent - source, testsuite and documentation

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

Mini SMTP server written in golang

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.

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

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.

An SMTP server that converts emails into Pushover notifications.

A lightweight SMTP mail library

Sending HTML email using Go 💌

Plugin for the Haraka SMTP server to store incoming and outgoing emails to MongoDB

Run ProtonMail Bridge in a docker container

Dockerized SMTP/IMAP server for development

Send nice emails

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

Full-featured, open source mail server solution for mainstream Linux/BSD distributions.

Easily send great-looking HTML email messages from R

SMTP docker container

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

'DANE for SMTP' wiki

基于 Net.Mail 封装的发送邮件工具类。仅需一行代码，发送邮件。支持自定义邮件发出邮箱、发出方名字等。 支持SSL加密发送。 多个接收人、抄送人。支持群发独显。 支持添加附件、多个附件。 目前大部分主流邮箱全支持。

Emails at the heart of your business logic!

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

Glass - ISC DHCP Server Interface

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

A throwaway smtp server with API

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

⚡️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.

Smart Bulk Email Sender with Mail Merge, Delay between Emails and HTML Content

The classic email sending library for PHP

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

A SMTP Server component written in C#

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

Actively maintained fork of gomail. The best way to send emails in Go.

📤 An SMTP client & server library written in Go

Create custom SMTP servers on the fly

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

Dependency free file server for single page app development

a mailer library for Rust

一个C-S模版，该模版由三部分的程序组成，一个服务端运行的程序，一个客户端运行的程序，还有一个公共的组件，实现了基础的账户管理功能，版本控制，软件升级，公告管理，消息群发，共享文件上传下载，批量文件传送功能。具体的操作方法见演示就行。本项目的一个目标是：提供一个基础的中小型系统的C-S框架，客户端有三种模式，无缝集成访问，winform版本，wpf版本，asp.net mvc版本，方便企业进行中小型系统的二次开发和个人学习。同时网络组件方便的支持读写三菱和西门子PLC的数据，详细见Readme

A lightweight PHP SMTP mail sender

Email-based instant messaging for Desktop.

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

Repository has moved:

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

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

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.

⚡️ A dev tool for microservice developers to run local applications and/or forward others from/to Kubernetes SSH or TCP

Mailway installer, host your own Mailway instance

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

Aplus Framework Email Library

A python 3+ program to spam emails to a list of users repetitively