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13.4. E-Mail

13.4.1. Evolution

Evolution is the GNOME email client and can be installed with apt install evolution. It is more than a simple email client: it 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.
Das E-Mail-Programm Evolution

Abbildung 13.4. Das E-Mail-Programm Evolution

An extension to Evolution allows integration with a Microsoft Exchange email system; the required package is evolution-ews[5].

13.4.2. KMail

The KDE email software can be installed with apt 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.
Das E-Mail-Programm KMail

Abbildung 13.5. Das E-Mail-Programm KMail

13.4.3. Thunderbird

The thunderbird package provides the email client from the Mozilla software suite. Various localization sets are available in thunderbird-l10n-* packages; the enigmail extension handles message encrypting and signing, but it is not available in all languages.
The Thunderbird email software

Abbildung 13.6. The Thunderbird email software

[5] The evolution-ews package is not part of Debian Buster. It was removed during the release process due to a security issue. But at the time of writing a recent version is available as backport (see Abschnitt, „Stable Backports“).