Björn Höfling transcribed 1.2K bytes:
> One of my key customers needs a new GNU/Linux installation and they are
> willing to give GuixSD a try if Thunderbird is available.
> 
> I thought that's no problem and was surprised to not find anything
> like Icedove in the guix repository.
> 
> I found two references on the net, but both are negative:
> 
> https://lists.gnu.org/archive/html/guix-devel/2017-08/msg00231.html
> https://gitlab.secushare.org/infotropique/issues/issues/4

The second link is negative. I stopped pretending that bugtrackers
are of any use without people caring for them.

> Are there any more recent news on the Thunderbird side? Does anyone have
> more-or-less ready snippets available?

I can not post the link to straight-out of the box Thunderbird here
(current repository is against the policy in Guix), but if you really
want to work on it I can send you the link offlist (just contact me at
gillmann@infotropique.org).

> Maybe I can convince then to switch to an alternative: What would you
> suggest for a graphical mail-reader that can import Thunderbird message
> archives and address book and is part of Guix?

Thunderbird has its own format, right? .eml, but can export to mbox.
So I guess anything that reads mbox would work?

> Thanks,
> 
> Björn