Cyrille Haudebault

Do you have gpgsm packet installed, Mutt (the system used by automysqlbackup to send email) need this packet ? Try this to see: dpkg -l | grep gpgsm You may have this kind of response: ii gpgsm 2.1.18-8~deb9u4 amd64 GNU privacy guard - S/MIME version If you don't have gpgsm, install it: sudo apt-get install gpgsm sudo yum install gpgsm (for CentOS)