root=demo@nauvelis.io mailhub=mail hostname=raspberrypi mailhub=mail.gandi.net:597 UseSTARTTLS=YES AuthUser=demo@nauvelis.io AuthPass=**********
pi:demo@nauvelis.io:mail.gandi.net:587
ssmtp jonathan.alibert@gmail.com Subject: Hello world test Hello world! Ctrl+D
printf "Subject: sujet\nCorps du message" | ssmtp jonathan.alibert@gmail.com