A Really Ruby Mail Library
翻译 - 真正的Ruby邮件库
Web and API based SMTP testing
翻译 - 基于Web和API的SMTP测试
A cross-platform .NET library for IMAP, POP3, and SMTP.
翻译 - 用于IMAP，POP3和SMTP的跨平台.NET库。
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.
翻译 - 箱中邮件通过定义一键式，易于部署的SMTP +其他服务器（箱中的邮件服务器），可以帮助个人重新控制电子邮件。
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.
MailCore 2 provide a simple and asynchronous API to work with e-mail protocols IMAP, POP and SMTP. The API has been redesigned from ground up.
翻译 - MailCore 2提供了一个简单且异步的API，可以与电子邮件协议IMAP，POP和SMTP一起使用。该API已从头开始重新设计。
MailSniper is a penetration testing tool for searching through email in a Microsoft Exchange environment for specific terms (passwords, insider intel, network architecture information, etc.). It can b...
💌 An extensible desktop mail app built on the modern web. Forks welcome!
翻译 - ：love_letter：建立在现代网络上的可扩展桌面邮件应用程序。货叉欢迎！
A mail driver to quickly preview mail
📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail
翻译 - incoming一个功能全面的开源邮件传递平台，用于接收和发送电子邮件
Flask-Mail adds SMTP mail sending to your Flask applications
Proton Mail Android app
翻译 - ProtonMail Android应用
Proton Mail Bridge application
翻译 - ProtonMail Bridge应用程序
MailEclipse ⚡ Laravel Mail Editor
翻译 - MailEclipse：zap：轻松玩Laravel Mailables！
IMAP mail filtering utility
A Python Mail Server
Isotope Mail Client
Mail Chimp 3.0 Wrapper