Use the opensmtpd package as it was updated in guix

Julien LepillerThu Feb 20 16:45:42+0100 2020

20e2957

system-configuration/homes/files
namelast commitdate
gitconfigSeparate home management in more specific modulesSun Jun 09 20:31:52+0200 2019
openbox/Add a beginning of home managementSat Jun 08 23:23:21+0200 2019
xfce4-terminal/Separate home management in more specific modulesSun Jun 09 20:31:52+0200 2019