hMailServer is a free e-mail server for Microsoft Windows. It's used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.
It supports the common e-mail protocols (IMAP, SMTP and POP3) and can easily be integrated with many existing web mail systems. It has flexible score-based spam protection and can attach to your virus scanner to scan all incoming and outgoing email.
Java Email Server
Introduction - Download - Install - Configuration - License - Change Log - Related Projects
Introduction
Java Mail Server is a Java SMTP and POP3 e-mail server. This project was inspired by and based on the CRSMail project written by Calvin Smith. This project exists for everyone who is interested in running their own email server quickly and easily.
The goal of JES is to provide an easy to use and reliable email server that can be quickly and easily setup. JES attempts to provide a powerful server using the minimal number of configuration settings and project size.
Interested in this history of JES? Check out these blog posts: History, Version 2.0 Branch, and Status and Future.
If you are ready to start using JES, please see the Download and Install sections below for instructions on downloading and configuration JES.
Both versions, and the source code are available for download from the Download section.
JES is licensed under the GNU General Public License.
You can email me at eric@ericdaugherty.com