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13.4. Email

13.4.1. Evolution

Evolution is the GNOME email client and can be installed with apt-get install evolution. Evolution goes beyond a simple email client, and also provides a calendar, an address book, a task list, and a memo (free-form note) application. Its email component includes a powerful message indexing system, and allows for the creation of virtual folders based on search queries on all archived messages. In other words, all messages are stored the same way but displayed in a folder-based organization, each folder containing messages that match a set of filtering criteria.
The Evolution email software

圖形 13.4. The Evolution email software

An extension to Evolution allows integration to a Microsoft Exchange email system; the required package is evolution-ews.

13.4.2. KMail

The KDE email software can be installed with apt-get install kmail. KMail only handles email, but it belongs to a software suite called KDE-PIM (for Personal Information Manager) that includes features such as address books, a calendar component, and so on. KMail has all the features one would expect from an excellent email client.
The KMail email software

圖形 13.5. The KMail email software

13.4.3. Thunderbird and Icedove

This email software, included in the icedove package, is part of the Mozilla software suite. Various localization sets are available in icedove-l10n-* packages; the enigmail extension handles message encrypting and signing (alas, it is not available in all languages).
The Icedove email software

圖形 13.6. The Icedove email software

Thunderbird is one of the best email clients, and it seems to be a great success, just like Mozilla Firefox.
Strictly speaking, Debian Jessie contains Icedove, and not Thunderbird, for legal reasons we will detail in the sidebar CULTURE Iceweasel, Firefox and others; but apart from their names (and icons), there are no real differences between them.