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Thunderbird

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Claimed by Mozilla Foundation Analyzed 5 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

912K lines of code

115 current contributors

5 days since last commit

3,328 users on Ohloh

Very High Activity
4.16294
   
Licenses: GPL-2.0+, LGPL, MPL-1.1

SpamAssassin

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Claimed by Apache Software Foundation Analyzed about 2 hours ago

SpamAssassin is a spam filter that can be used on a wide variety of email systems including procmail, sendmail, Postfix, qmail, and many others.

86.6K lines of code

11 current contributors

1 day since last commit

553 users on Ohloh

High Activity
4.25397
   

amavisd-new

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  Analyzed 3 days ago

amavisd-new is a high-performance interface between mailer (MTA) and content checkers: virus scanners, and/or SpamAssassin. It is written in Perl for maintainability, without paying a significant price for speed. It talks to MTA via (E)SMTP or LMTP, or by using helper programs. Best with Postfix, fine with dual-sendmail setup and Exim ... [More]

0 lines of code

4 current contributors

0 since last commit

78 users on Ohloh

Activity Not Available
3.80952
   

Horde

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  Analyzed 5 days 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 groupware suite. The guiding princip... [More]

1M lines of code

21 current contributors

5 days since last commit

55 users on Ohloh

Very High Activity
3.83333
   
Licenses: Apache-is..., BSD-3-Clause, GPL-2.0+

DSPAM

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  Analyzed about 9 hours 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 a stand-alone SMTP appliance. For de... [More]

48.5K lines of code

1 current contributors

6 months since last commit

22 users on Ohloh

Very Low Activity
4.5
   

Postgrey

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  Analyzed 5 days ago

Greylisting implementation for Postfix

2.48K lines of code

2 current contributors

About 1 month since last commit

19 users on Ohloh

Very Low Activity
4.33333
   

bogofilter -- Fast Bayesian Spam Filter

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  Analyzed 11 months 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 fast algorithms (including Berkeley DB s... [More]

49.2K lines of code

2 current contributors

Over 1 year since last commit

16 users on Ohloh

Activity Not Available
4.0
   
Licenses: No declared licenses

Apache JAMES Project

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Claimed by Apache Software Foundation Analyzed over 1 year ago

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 on currently available open protocols. James is also a mail application platform. We have developed a Java API to let you write Java c... [More]

3.49M lines of code

7 current contributors

Over 1 year since last commit

13 users on Ohloh

Activity Not Available
4.25
   

MailScanner

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  Analyzed 5 days ago

A Free Anti-Virus and Anti-Spam Filter

43.5K lines of code

6 current contributors

29 days since last commit

10 users on Ohloh

Very Low Activity
5.0
 
Licenses: No declared licenses

SpamBayes anti-spam

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  Analyzed over 3 years ago

Bayesian anti-spam classifier written in Python.

53.4K lines of code

2 current contributors

Over 3 years since last commit

9 users on Ohloh

Activity Not Available
4.33333