13.4. 邮件

13.4.1. Evolution

社区 流行 软件包

Installing the popularity-contest package enables participation in an automated survey that informs the Debian project about the most popular packages. A script is run weekly by cron which sends an anonymized list of the installed packages (by HTTP or email) and the latest access date for the files they contain. This allows the Debian maintainers to know which packages are most frequently installed, and of these, how frequently they are actually used.

此类信息对 Debian 项目是很有用的。将会决定哪些软件包出现在首个安装盘上。此类信息也是决定是否移除某些只有少数用户使用软件包的重要因素。我们衷心的希望安装popularity-contest 软件包，并参与调查。

The collected data are made public every day.

→ https://popcon.debian.org/

These statistics can also help users to choose between two packages that seem otherwise equivalent. Choosing the more popular package is probably a safer choice.

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.

图 13.4. Evolution 电子邮件软件

An extension to Evolution allows integration with a Microsoft Exchange email system; the required package is evolution-ews[6].

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.

图 13.5. KMail 电子邮件软件

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.

图 13.6. The Thunderbird email software

[6] 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 第 6.1.2.4 节 “向后移植到稳定版(Stable Backports)”).