Alexandre Duret-Lutz <adl@lrde.epita.fr> writes:

> I am able to reproduce it with "emacs -Q" (version 27.1 from Debian) as
> follows:
>
> 1. manually copy the uuencoded mail from
>    https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44307#5
>    in example.uu
> 2. sed -i 's/ <at> /@/g' example.uu
> 3. uudecode example.uu

This leaves me with a file that looks like: