Top Communication Software for Linux

spamdyke is an open source software written in C as a drop-in filter for the qmail application, replacement for sendmail, designed to provide numerous features, including graylisting, connection-time blacklisting, DNS RHSBL/RBL checking, improved logging,...

Billigvorwahlen is an open source software that displays the cheapest "Handyvorwahlen" for mobile calls from "Festnetz". It is intended to be used by German users only. Billigvorwahlen is designed especially for the KDE Software Compilation desktop...

SpamAssassin is a widely-deployed, free and mature open source command-line application that has been designed from the ground up to block spam and unwanted email messages on a Linux/UNIX mail server.Provides a wide variety of anti-spam mechanismsIt is an...

Skype is a free and cross-platform application that provides users with a modern Internet telephony and instant messaging application based on the Voice over Internet Protocol (VoIP) technology. It is available on Linux, Microsoft Windows and Mac OS...

Smuxi is an open source, free, full featured, portable and fast software project designed to act as an IRC (Internet Relay Chat), Twitter, Campfire, JabbR and XMPP client that features support for multiple servers. It is supported on all mainstream...

KDE Telepathy is a suite of open source, portable and free applications, plasmoids and libraries for the KDE Plasma desktop environment, allowing users to chat, transfer files, make video calls, and much more.Features at a glanceAs its name suggests, KDE...

Yet Another Telephony Engine (Yate) is an open source, portable, flexible and completely free next-generation telephony engine focused on Voice over Internet Protocol (VoIP). The software is implemented in C++ and can only be used via a command-line...

getmail is an open source, simple, small, free and fast command-line software project implemented in Python and designed to be used for retrieving electronic mail messages from normal, single-user mailboxes, as well as from multidrop (domain) mailboxes....

SFLphone is an open source Voice over IP telephony software.Voice over IP tends to be part of more and more corporate (and home) networks today.Features:SIP and STUN support; OSS and ALSA (since 0.3) audio devices support; Skinned GUI; G711u, G711a PCM,...

Sendmail is an open source Mail Transfer Agent (MTA), a tool that moves email messages from one computer to another.Sendmail implements a general email routing facility, featuring forwarding, automatic routing to network gateways, flexible configuration...