Mozilla Thunderbird is a fast and very functional GUI mail client. It features excellent online/offline mail reading, IMAP, POP and local mail transfer protocols, security with X.509 and GPG key management, and a plethora of extensions.
Thunderbird follows in the tradition of Mozilla Firefox. It is a focused, lightweight mail client with very good extensibility through the Mozilla extension mechanism.
Thunderbird is widely localised and available in many languages.
All packages Packages in Distributions
thunderbird source package in Zesty
Version 1:45.3.0+build1-0ubuntu5 uploaded on 2016-10-19
thunderbird source package in Yakkety
Version 1:45.3.0+build1-0ubuntu4 uploaded on 2016-10-12
thunderbird source package in Xenial
Version 1:45.3.0+build1-0ubuntu0.16.04.2 uploaded on 2016-09-14
thunderbird source package in Wily
Version 1:45.2.0+build1-0ubuntu0.15.10.1 uploaded on 2016-07-04
thunderbird source package in Vivid
Version 1:38.5.1+build2-0ubuntu0.15.04.1 uploaded on 2016-01-06