Any ex-talktalk/tiscali and etc. customers, still receiving mail via their old address, will loose access from the 30/09/2019, unless they sign up to pay £5 per month.
I do still get some people using my old Tiscali address, long after I moved to Plusnet, but £5 per month is very poor value for me, for what has always been a poor intermitant service and I will not be subscribing.