Category
page 1Usenet clients
Google Groups
service from Google that provides discussion groups
Outlook Express
Microsoft e-mail client software
HCL Domino
rapid application development platform
Windows Calendar
an application of Microsoft windows
Microsoft Internet Explorer 2
web browser of Microsoft
Sylpheed
Sylpheed is an open-source e-mail client and news client licensed under GNU GPL-2.0-or-later with the library part LibSylph under GNU LGPL-2.1-or-later. It provides easy configuration and an abundance of features. It stores mail in the MH Message Handling System. Sylpheed runs on Unix-like systems such as Linux or BSD, and it is also usable on Windows. It uses GTK+.
newsreader
newsgroup reading softwares
Novell GroupWise
GroupWise is a messaging and collaboration platform from OpenText that supports email, calendaring, personal information management, instant messaging, and document management. The GroupWise platform consists of desktop client software, which is available for Windows, (formerly Mac OS X, and Linux), and the server software, which is supported on Windows Server and Linux.
Gnus
Gnus (), or Gnus Network User Services, is a message reader which is part of GNU Emacs. It supports reading and composing both e-mail and news and can also act as an RSS reader, web processor, and directory browser for both local and remote filesystems.

Line Mode Browser
Multi-platform command-line web browser
Arena
web browser and web authoring tool for Unix
Mail
conflation of two applications developed by Microsoft
Gmane
Gmane (pronounced "mane") is an e-mail to news gateway. It allows users to access electronic mailing lists as if they were Usenet newsgroups, and also through a variety of web interfaces. Since Gmane is a bidirectional gateway, it can also be used to post on the mailing lists. Gmane is an archive; it never expires messages (unless explicitly requested by users). Gmane also supports importing list postings made prior to a list's inclusion on the service.