wget https://download.bluemail.me/BlueMail/deb/BlueMail.deb
wget http://mirrors.kernel.org/ubuntu/pool/universe/g/gconf/gconf2-common_3.2.6-6ubuntu1_all.deb
wget http://mirrors.kernel.org/ubuntu/pool/universe/g/gconf/libgconf-2-4_3.2.6-6ubuntu1_amd64.deb
sudo dpkg -i gconf2-common_3.2.6-6ubuntu1_all.deb
sudo dpkg -i libgconf-2-4_3.2.6-6ubuntu1_amd64.deb
sudo dpkg -i BlueMail.deb

# add --no-sandbox in the end of the launcher command