Hi!
I have created a bash scripts for my router, desktop PC and home server. Daily, they check the use of the hard disk, and if the use is greater than a limit, send me an email. For doing this, this, i use ssmtp as MTA.
But i haven't found an addon for sending mails, nor libreelec, nor kodi.
It'd be nice having ssmtp.
Just an idea (or request 
)
Bye