Thunderbird delivers. Enjoy safe, fast, and easy email, with intelligent spam filters, quick message search, and customizable views. Brought to you by Mozilla, Thunderbird makes email better.
User web site:
http://www.mozilla.com/thunderbird
GNU Mailman is software to help manage email discussion lists and e-newsletters. Its integrated Web interface provides easy-to-use access for list members and list administrators. Mailman supports
... [More] built-in archiving, automatic bounce processing, content filtering, digest delivery, spam filters, topics, Usenet gateways, and more. It is fully internationalized, and supports digests and email commands. It runs on any Linux or Unix-like operating system and is compatible with most email and Web servers, mail readers, and Web browsers. [Less]
Bogofilter is a Bayesian spam filter. In its normal mode of operation, it takes an email message or other text on standard input, does a statistical check against lists of "good" and "bad" words, and
... [More] returns a status code indicating whether or not the message is spam. Bogofilter is designed with fast algorithms (including Berkeley DB system), coded directly in C, and tuned for speed, so it can be used for production by sites that process a lot of mail. [Less]
The Apache Java Enterprise Mail Server (a.k.a. Apache James) is a 100% pure Java SMTP and POP3 Mail server and NNTP News server. James is a complete and portable enterprise mail engine solution based
... [More] on currently available open protocols.
James is also a mail application platform. We have developed a Java API to let you write Java code to process emails that we call the mailet API. A mailet can generate an automatic reply, update a database, prevent spam, build a message archive, or whatever you can imagine. A matcher determines whether your mailet should process an email in the server. The James project hosts the Mailet API, and James provides an implementation of this mail application platform API. [Less]
Bongo is an easy-to-use mail and calendar system, offering a simple yet powerful user interface. The goal is to make sharing, organisation, and communication simpler, quicker, and more useful.
Buni is a community of open source software developers and users dedicated to the research and development of communication and collaboration software. Buni offers Meldware Communications Suite with
... [More] Mail, a Calendar Server, Webmail, and a Secure Administration System. [Less]
We all want spam filtering, I want it on my server, so my webmail is already filtered. I get approximately 2500 spam mails per month, and many more that don't make it through my SMTP front lines. I
... [More] use dspam because it has a much lower footprint than SpamAssassin, and also because it succeeds in catching almost all of my spam with virtually no false positives.
Additionally, most spam filters need training. In order to be able to train with as little overhead as possible, I want to simply be able to move false positives out of the spam folder and false negatives into it. This leads to the concept of integrating the spam retraining process into the IMAP server. [Less]
opensiqserver is a Server software that implements the SIQ protocol for scoring based on facts or reputation of an IP/domain pair. It can be used as a base for antispam server-side solutions working
... [More] for example with sendmail and milter-siq or any other SIQ client.
opensiqserver is the first sender reputation system standard, open source and free. [Less]