Additional exim config

src/freedombone-base-email

     if ! grep -q "tls_on_connect_ports=465" /etc/exim4/exim4.conf.template; then
         sed -i '/SSL configuration for exim/i\tls_on_connect_ports=465' /etc/exim4/exim4.conf.template
     fi
+    if ! grep -q "# don't send system passwords" /etc/exim4/exim4.conf.template; then
+        sed -i "s|don't send system passwords.*|# don't send system passwords unencrypted|g" /etc/exim4/exim4.conf.template
+    fi
 
     adduser $MY_USERNAME sasl
     addgroup Debian-exim sasl