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Claimed by Mozilla Foundation Analyzed 18 days ago

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

892K lines of code

89 current contributors

18 days since last commit

3,286 users on Open Hub

Very High Activity
I Use This

Apache SpamAssassin


Claimed by Apache Software Foundation Analyzed 7 months ago

Apache SpamAssassin is the #1 Open Source anti-spam platform giving system administrators a filter to classify email and block spam (unsolicited bulk email). It uses a robust scoring framework and plug-ins to integrate a wide range of advanced heuristic and statistical analysis tests on email ... [More] headers and body text including text analysis, Bayesian filtering, DNS blocklists, and collaborative filtering databases. Apache SpamAssassin is a project of the Apache Software Foundation (ASF). [Less]

102K lines of code

10 current contributors

7 months since last commit

535 users on Open Hub

Activity Not Available
I Use This



  Analyzed 7 days ago

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 built-in archiving, automatic bounce processing, content filtering, digest delivery, spam filters ... [More] , 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]

182K lines of code

18 current contributors

7 days since last commit

200 users on Open Hub

Moderate Activity
I Use This



  Analyzed about 10 hours ago

Horde is both an Open Source software project and an application framework written in PHP. The application framework is currently the basis for 50 applications written by developers from around the world, including the flagship IMP Webmail client, the popular Chora repository viewer, and a complete ... [More] groupware suite. The guiding principles of the Horde Project are to create solid standard-based applications using intelligent object oriented design, and wide-ranging platform and backend support. There is great emphasis on making Horde as friendly to non-English speakers as possible. The Horde Framework currently supports many localization features such as unicode and right-to-left text, and is shipped with translations in over 40 languages. [Less]

1.2M lines of code

5 current contributors

17 days since last commit

54 users on Open Hub

Low Activity
I Use This
Licenses: Apache-is..., BSD-3-Clause, GPL-2.0+



  Analyzed 6 months ago

DSPAM is a scalable and open-source content-based spam filter designed for multi-user enterprise systems. On a properly configured system, many users experience results between 99.5% - 99.95%, or one error for every 200 to 2000 messages. DSPAM supports many different MTAs and can also be deployed as ... [More] a stand-alone SMTP appliance. For developers, the DSPAM core engine (libdspam) can be easily incorporated directly into applications for drop-in filtering (GPL applies; commercial licenses are also available). [Less]

48.5K lines of code

0 current contributors

over 3 years since last commit

20 users on Open Hub

Activity Not Available
I Use This
Licenses: No declared licenses



  Analyzed 16 days ago

Greylisting implementation for Postfix

2.68K lines of code

3 current contributors

8 months since last commit

19 users on Open Hub

Very Low Activity
I Use This

bogofilter -- Fast Bayesian Spam Filter


  Analyzed over 2 years ago

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 returns a status code indicating whether or not the message is spam. Bogofilter is designed with ... [More] 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]

49.2K lines of code

2 current contributors

over 5 years since last commit

14 users on Open Hub

Activity Not Available
I Use This
Licenses: No declared licenses



  Analyzed 4 months ago

The original upstream tarball is modified from upstream by removing a set of sourceless binary, non-free, and VCS-related files. You can find a repack.py script in the debian directory doing this cleanup, using filtering data present in a source.filter file in the same directory. If this file is ... [More] incomplete, which I'm pretty sure is the case, because it's difficult not to forget anything in this huge amount of data, please file a bug or contact me. Some licensing terms are not included verbatim in this file on purpose, for terms that are available in a file in subdirectories that are not used to build the binary packages. [Less]

13.5M lines of code

0 current contributors

over 1 year since last commit

10 users on Open Hub

Activity Not Available
I Use This
Licenses: BSD-4-Cla..., GPL-2.0+, LGPL-2.1



  Analyzed 16 days ago

A Free Anti-Virus and Anti-Spam Filter

46.7K lines of code

0 current contributors

over 2 years since last commit

10 users on Open Hub

I Use This
Licenses: No declared licenses



  Analyzed 3 months ago

Untangle delivers an integrated family of applications that help you simplify and consolidate the network and security products you need, in one place at the network gateway. The most popular applications let businesses block spam, spyware, viruses, and phish, filter out inappropriate web content ... [More] , control unwanted protocols like instant messaging, and provide remote access and support options to their employees. Every downloadable application is pre-configured and guaranteed to work together. * All applications run on one off-the-shelf server * Pre-configured on-demand downloads * Integrated administration and reporting The Platform provides the GUI, logging, reporting and virtual pipelining technology to make all of the apps run together smoothly. [Less]

226K lines of code

13 current contributors

3 months since last commit

7 users on Open Hub

Activity Not Available
I Use This