Open Source C Communications Software

See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.

A GTK+ Gnutella client, efficient, reliable and fast, written in C. It has been optimized for speed and scalability, with low-memory consumption. It is meant to be left running 24x7, using little CPU and only the configured bandwidth. It is possible to run gtk-gnutella without a GUI or using a shell interface.

QmailAdmin is a web interface for managing email addresses in virtual domains created by Vpopmail.

Repeater controller and EchoLink software for Linux including a GUI, Qtel - the Qt EchoLink client. The SvxLink project has now moved to GitHub. The new home page for the project is http://svxlink.org/ .

emesene is a platform independent instant messaging client for the Windows Live Messenger (tm) network. emesene is distributed free of charge under the GNU General Public License 2 or any later version.

NOTE: Code commits are FROZEN on SourceForge: New code is now at <http://github.com/Xastir/Xastir>. Real-time tracking & messaging of stations via radio/internet APRS data streams, w/125 map formats supported. Linux/FreeBSD/Solaris/MacOSX/Windows in any of 7 languages. Can also be used for mobile mapping w/GPS. MAILING LISTS ARE AT: PROJECT->WEB SITE.

A minimal web server with a simple GUI meant for fast and simple file sharing. Aims to be powerful yet easy to use.

MailCleaner is no longer maintained. It will return soon in another form. [antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It includes a complete GNU/Linux OS and a graphical web interface for user and administrative access. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...) You can install now MailCleaner within the following virtual environments: qcow2 (KVM, Proxmox, OpenStack, Xen) ova (OVA, VMware ESXi, VMware Workstation, Fusion) vhd (Asure, VirtualPC) vhdx (Hyper-V) AMI (Amazon) Dedicate a server to MailCleaner, and you will have a working professional mail filter in le

Anope Services are built off of the original Epona code written by Lara which is built off of IRC Services. These services have advanced the original Epona code and include new features such as Modules, Mysql, and Defcon Mode.

Mailman is the GNU mailing list manager. It provides standard list management features, integrated with a web interface. Please note: the subversion repository has been retired. Please see http://wiki.list.org/x/DgAJ for details.

A handy stand-alone GTK+ client for accessing your favorite DX Cluster or Reverse Beacon Net server via telnet over TCP/IP.

Claws Mail is a GTK+ based, lightweight, and fast e-mail client and newsreader. Supports POP3, APOP, IMAP, SMTP, SMTP AUTH, NNTP, LDAP, multiple accounts, spell-checking, addressbook, SSL, GPG, filtering, i18n, & more. It is further extended by plugins.

MBSE BBS is a fully FTN-capable ANSI BBS package including a mailer (ifcico clone), BinkD daemon, mail tosser, TIC processor, filefind, and other utilities allowing access via modem and the Internet using telnet, ssh, http and ftp. Support is offered through the Fidonet MBSE echo and the Micronet MIN_BBS echo.

Yammy (Yahoo Messenger Archive Decoder) allows you to decode and view not only yours but, also other stored YM conversations. You don't even need a password!

A text mode reader for RSS and Atom feeds.

Graphical user interface for the Overnet and eDonkey2000 file-sharing command line clients. Runs on Linux, *BSD, MacOSX, and MS Windows.

A fork of pidgin which aims to provide minor features that have not been addressed by the pidgin development team (including manual textbox resizing). See funpidgin.sf.net for details.

Jabberwocky is a jabber client software for Amiga Computers. It is open source and released under the GNU GPL License.

DBMail provides a database-backend mail store using PostgreSQL or MySQL. It includes POP3 and IMAP servers to access the mail store, pipe and LMTP for message delivery, and a suite of command line utilities. Please click our Home Page link for more info.

Aquila is a DirectConnect hub software aiming to provide reliable, flexible and efficient service. It is designed to be lightweight and fast without sacrificing functionality.

ClamMail is POP3 email proxy for Windows with integrated ClamAV antivirus engine. ClamMail is an Windows antivirus that protects your PC from viruses transferred via mail. Works with Outlook,Thunderbird,Eudora and many others using popular POP3 protocol

DB Hub is a Linux/Unix software designed to be a Direct Connect hub. It's based on Open DC Hub code but has many more enhancements. Documentation is available on http://dbhub.zendor.eu/ (still incomplete, but updated almost every day)

[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.

Abuse is a simple program that helps people fight spam. It will "read" any e-mail header you indicate, go on-line and check the various NICs, open relay DBs... prepare/send an email (lart) to the spammer's ISP in order for your voice to be heard.

The DXSpider DX Cluster is a linux based, (mainly) perl program designed to provide the same general functionality (and more) as the DOS version originally written by Dick Newell AK1A.