@jkandasa THanks - The pi mycontroller is running on has ssmtp installed and this works for sending cron messages etc.
I tried to ping my isp mail server with no response (but also got no response from a win10 machine either) yet mails are working as far as I can tell.
I have to get Mum from the hospital now so will try again later when I have time.
@Radi-M See if this helps you......
Ah, I just realised that battery level is not a 'sensor' in the usual respect. I had a look but I can't figure it out either!