Browse free open source C Email Software and projects below. Use the toggles on the left to filter open source C Email Software by OS, license, language, programming language, and project status.

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  • 1

    bogofilter -- Fast Bayesian Spam Filter

    Fast Bayesian spam filter along lines suggested by Paul Graham

    The bogofilter package implements a fast Bayesian spam filter as suggested by Paul Graham in "A Plan For Spam" <http://www.paulgraham.com/spam.html>. It is written in C. Supported platforms: Linux, FreeBSD, Solaris, OS X, HP-UX, AIX, RISC-OS, ...
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    Downloads: 129 This Week
    Last Update:
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  • 2
    (This site is DEPRECATED. Please visit https://github.com/verdammelt/tnef) TNEF provides a way to unpack those pesky Microsoft MS-TNEF MIME attachments. It operates like tar in order to upack any files which may have been put into the MS-TNEF attachment instead of being attached seperately.
    Downloads: 34 This Week
    Last Update:
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  • 3
    Untangle
    Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com
    Downloads: 21 This Week
    Last Update:
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  • 4
    base64 RFC1113 Vanilla ANSI-C Code for a portable stand-alone file encode/decode utility. In 2001, I asked people to 'Help me break it!' Since then, 10+years later, the code remains unbroken and is in wide production use world-wide. It has been ported to all major architectures and been used as a template for ports to different computer and human languages. This is very mature and stable code. Although this comes from a project that was constrained by export controls and is used in secure systems, it is not security code per-se. I have therefore altered the 'Export Controls' category.
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    Downloads: 17 This Week
    Last Update:
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  • 5
    YPOPs! is an application which emulates a POP3/SMTP mail server and provides free POP3 and SMTP access to Yahoo! Mail. It does not depend on Yahoo's POP3/SMTP mail server. You can use a mail client of your choice!
    Downloads: 3 This Week
    Last Update:
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  • 6
    basE91 is an advanced method for encoding binary data as ASCII characters. It is similar to UUencode or base64, but is more efficient. The overhead produced by basE91 depends on the input data. It amounts at most to 23% and can range down to 14%.
    Downloads: 13 This Week
    Last Update:
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  • 7
    Mixmaster is an anonymous remailer. Remailers provide protection against traffic analysis and allow sending electronic mail anonymously or pseudonymously. Mixmaster consists of both client and server installations.
    Downloads: 5 This Week
    Last Update:
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  • 8
    FreePOPs is a webmail to pop3 conversion daemon. It is extensible to support other webmail using the scripting language LUA. See the homepage for supported webmails.
    Downloads: 1 This Week
    Last Update:
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  • 9
    CRM114 is a Controllable Regex Mutilator and filter. It provides arbitrary stream filtering for antispam, adkiller proxies, syslog monitoring, etc. CRM114 has a structured, easily understood way to express regex-based filters, and a learn-by-example mod
    Downloads: 3 This Week
    Last Update:
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  • 10
    Sieve is a mail filtering language standardized as RFC 3028 / RFC 5228 and its extensions. libSieve provides a simple, clean API for parsing and executing Sieve scripts. Code is on GitHub: http://github.com/sodabrew/libsieve
    Downloads: 3 This Week
    Last Update:
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  • 11
    AMaViS is a script that interfaces a mail transport agent (MTA) with virus scanners.
    Downloads: 2 This Week
    Last Update:
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  • 12
    The program implements the CIDR merging with whitelisting (network exclusion). Output will be summarized to be as small as possible. The program has been widely used for blacklist merge and optimization.
    Downloads: 2 This Week
    Last Update:
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  • 13
    Doc2pdf is an email robot that converts Microsoft Office attachments (.doc, .ppt, and .xls) to PDF. Next time you email a Microsoft Office document, CC doc2pdf. Doc2pdf will convert the attachment to PDF, and send it in a reply to all recipients.
    Downloads: 2 This Week
    Last Update:
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  • 14
    just like mysql front, squid front is used to manage the squid tasks running on servers and monitor system status of each server, it also help you configure your ruels, users as well as other informations.
    Downloads: 1 This Week
    Last Update:
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  • 15
    Webmail client for call center agents. Designed to efficiently manage and report on a large number of emails to a small number of email addresses. Specifically designed with webforms in mind where one email address may receive over 1000 emails per day.
    Downloads: 1 This Week
    Last Update:
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  • 16
    CookMail is a powerful HTML email form CGI handler. It provides custom HTML output and email messages without the hassle of programming.
    Downloads: 1 This Week
    Last Update:
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  • 17
    DEPRECATED - This is now hosted at https://github.com/Yeraze/ytnef ytnef is a program to work with procmail to decode TNEF streams (winmail.dat attachments) like those created with Outlook. Unlike other similar programs, it can also create vCalendar/vCard entries from meeting requests, address cards, and task entries.
    Downloads: 1 This Week
    Last Update:
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  • 18

    dbacl - digramic Bayesian classifier

    commandline multiclass email and text filter

    dbacl is a general purpose digramic Bayesian text classifier. It can learn text documents you provide, and then compare new input with the learned categories. It can be used for spam filtering, or within your own shell scripts. Sometimes it plays che
    Downloads: 1 This Week
    Last Update:
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  • 19
    Public domain portable Naive Bayesian message filter aimed towards C programmers.
    Downloads: 0 This Week
    Last Update:
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  • 20
    Blackhole is a C program designed to stop spam and prevent unwanted senders from sending you email. It is put in the .qmail file and will divert spam and viruses to separate files which can be checked with an IMAP client if configured to do so. It no
    Downloads: 0 This Week
    Last Update:
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  • 21

    CRM114 MILTER

    CRM114 milter for sendmail

    This is a milter which scans emails with CRM114
    Downloads: 0 This Week
    Last Update:
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  • 22
    CSCMail is an X/Gtk based MUA. It supports the POP3 protocal and can also read mailspool files/directories. It supports multiple accounts, filters, GPG, MIME, Spellchecking, HTML Mail (view only) and a host of other features.
    Downloads: 0 This Week
    Last Update:
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  • 23
    This program is Win32 and X11/Qt4. CheckMail will log onto a POP server and check for messages and update a tray icon to alert user.
    Downloads: 0 This Week
    Last Update:
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  • 24
    This is an open-source implementation of Elegitimizer.com's "elegitisigner" specification. An easily implemented validation mechanism to help eliminate illegitimate e-mail or “Spam.” Elegitisigner features a well documented “web of trust” model.
    Downloads: 0 This Week
    Last Update:
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  • 25
    Do you want manage your exim queue easily? Eximq provides you a ncurses interface for you queue. You can send messages on queue, delete, edit sender email, delete all messages marked as frozen and so much.
    Downloads: 0 This Week
    Last Update:
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