KMail: Kontact Mail

KMail is the email component of Kontact, the integrated personal information manager of K Desktop Manager (KDE). Features include:

• IMAP, POP3 and SMTP support
• secure logons with SSL, TLS or DIGEST-MD5
• signing and encrypting of emails (both PGP and GnuPG are supported)
• reading of HTML mails
• anti-spam functions
• supports all international character sets
• powerful search and filter functions
• spell checking
• imports folders from many other mail clients
• highly integrated with other KDE components

KOrganizer is the calendar and scheduling component of Kontact, the integrated personal information manager of KDE.

KOrganizer provides management of events and tasks, alarm notification, web export, network transparent handling of data, group scheduling, import and export of calendar files and more. It is able to work together with a wide variety of groupware servers, for example Kolab, Open-Xchange, Citadel or OpenGroupware.org.

KOrganizer is fully customizable to your needs and is an integral part of the KDE PIM suite, which aims to be a complete solution for organizing your personal data. KOrganizer supports the two dominant standards for storing and exchanging calendar data, vCalendar and iCalendar.

KAddressbook is the contacts management component of Kontact, Features include:

• imports and exports to nearly every address book standard
• supports multiple LDAP servers
• intuitive printing using predefined and custom styles
• intergrates with Kopete (KDE's plugin-based, multi-protocol instant messaging monster)
• supports all international character sets
• powerful search functions
• completely customizable to your needs
• easy to embed in other applications

KNotes Component serves as your infinite block of digital sticky notes. Your can stick them on your desktop and they say visible even after closing KDE Kontact.

KNode is a full-featured KDE's default news reader. Features include:

• supports multiple newsservers
• reading and composing of MIME multipart messages
• inline display of attachments (text and images)
• supports full scoring
• drag and drop between groups and archive folders
• powerful search and filter functions

# yum install kontact

# apt-get install kontact
or 
# sudo apt-get install kontact

# urpmi kdepim-kontact