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

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

Glass - ISC DHCP Server Interface

Email-based instant messaging for Desktop.

A SMTP Server component written in C#

a mailer library for Rust

Create custom SMTP servers on the fly

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

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

🍥 an extensible mock server

DevSpace - The Fastest Developer Tool for Kubernetes ⚡ Automate your deployment workflow with DevSpace and develop software directly inside Kubernetes.

A lightweight PHP SMTP mail sender

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

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

Swift SMTP client

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

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

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

Makes sending emails easy and DRY — For Python 3.

Lightweight SMTP client written in Go

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.

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.

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

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

A TLS Enabled Fake SMTP Server for Development

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

Aplus Framework Email Library

Simple and easy to use catch-all SMTP mail server and debugging tool

'DANE for SMTP' wiki

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

An SMTP adapter for Bamboo.

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

Add Gulp to your MJML workflow!

Swoosh <3 Phoenix

Go 服务器框架（go-x.v2）

基于Laravel的API服务端架构代码

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A FTP(S) server with a couple of twists written in Rust. Follow and talk to us on https://t.me/unftp

SAO Utils Development & Bug Tracking

Documentation for all the situations where WordPress core sends an email, how and when they happen, and how to filter or disable each one.

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Send notification emails for pushes to a git repository (an improved version of post-receive-mail)

Maildroid is a small robust android library for sending emails using SMTP server

Carmelo is a fast, scalable Java server framework designed for online games. It uses Netty and Fastjson for highly efficient network transmission and supports both TCP/HTTP protocols.

A module to create readable `"multipart/form-data"` streams. Can be used to submit forms and file uploads to other web applications.

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.

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Simple and fast web server

Ordered process (re)start, shutdown, and supervision.

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A Node.js library to send all kinds of transactional notifications.