If tsoHost is lecturing us on sleep hygiene, Brit outfit really does have hosting back to front

Back in blacklist: Microsoft not keen on firm's IP addresses

UK hosting outfit tsoHost (the artist formerly known as TSO Host) continues to suffer the blacklist blues as email woes have continued to beset the company.…

via The Register - Data Centre: Networks
https://go.theregister.co.uk/feed/www.theregister.co.uk/2019/11/26/tsohost_blacklist/