qmail is an Internet Mail Transfer Agent (MTA). It was written as a more secure replacement for the popular Sendmail program.
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qmail is an Internet Mail Transfer Agent (MTA). It was written as a more secure replacement for the popular Sendmail program.
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chasquid is an SMTP (email) server with a focus on simplicity, security, and ease of operation. chasquid is free and open source software.
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Citadel/UX (commonly known as Citadel) is an open source, complete and feature-rich collaboration suite (messaging and groupware).
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Dovecot is a mail server whose major goals are security and extreme reliability. It seeks to handle all error conditions and verify that all data is valid.
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Cyrus IMAP is an email, contacts and calendar server intended to be run on a “sealed” server.
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The Courier mail transfer agent is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP.
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Postfix is a free and open source mail transfer agent (MTA), a computer program for the routing and delivery of email.
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Zimbra Collaboration Suite (ZCS) is a groupware product developed by Zimbra Inc. Zimbra consists of both client and server components.
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DBmail is the name of a group of programs that enable the possibility of storing and retrieving mail messages from a database.
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OpenSMTPD is an implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions.
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Exim is an open source mail transfer agent (MTA), which is software responsible for receiving, routing, and delivering e-mail messages.
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Godot is an advanced, open source, feature packed 2D and 3D cross-platform compatible game engine. The software offers a comprehensive set of common tools.
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jMonkeyEngine is a game engine written primarily in Java.
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libGDX is a cross-platform Java game development framework based on OpenGL (ES).
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LÖVE is a framework you can use to make 2D games in Lua.
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OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++.
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Official Hamster Republic Role Playing Game Construction Engine (O.H.R.RPG.C.E.) is a free open-source utility to create your own Role Play Game (RPG).
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Panda3D is a free and open source 3D game engine originally developed and actively maintained by the Walt Disney VR Studio.
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PixiJS is an HTML5 creation engine. The aim of this project is to provide a fast lightweight 2D library that works across all devices.
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Spring (previously known as TA Spring) is a project to create the best Real-time Strategy (RTS) game engine ever. It has three main goals.
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