MozillaThunderbird
An integrated email, news feeds, chat, and newsgroups client
Thunderbird is a free, open-source, cross-platform application for managing email, news feeds, chat, and news groups. It is a local (rather than browser- or web-based) email application that is powerful yet easy to use.
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Unsupported distributions
The following distributions are not officially supported. Use these packages at your own risk.