enigmail 1.9.8 in Ubuntu 16.04

Mon Aug 28 10:48:13 UTC 2017

On Mon, 28 Aug 2017 11:23:33 +0100, Phil Dobbin wrote:
>On 28/08/17 11:10, Ralf Mardorf wrote:
>> Obviously you are using a third party repository.  
>
>I installed it via Add Ons in Thunderbird.

In the meantime I noticed that Mozilla software allows to install so
called xpi files. So again, there is no official Ubuntu upgrade
available, it's required to install from another source. Much likely
Mozilla
https://addons.mozilla.org/en-US/thunderbird/addon/enigmail/ is a
partway secure way to get it. However, to install something OpenPGP
related from a download, without checking it against an OpenPGP key is
idiotic and ridiculous.