i have blocked all these mails from blizz , they aren t helpful because most of the time they are sent too early
instead i got a list of all my d2 accs and i m logging into them myself after about 80 days to keep them active
good thing about it is they are all updated at once and i m not getting spammed by blizz service
instead i got a reminder app which reminds me every 80th day to do it