Still SMTP floods from 185.222.211.x addresses / 2019-07-15

A month later I'm still seeing SMTP floods from 185.222.211.11 and adjacent addresses. I activated the sendmail-reject filter ruleset in fail2ban which keeps several addresses in that range blocked most of the time.

Given reports like 185.222.211.238 | Cloud Core LP | AbuseIPDB and 185.222.211.243 | Cloud Core LP | AbuseIPDB I'm not the only one seeing abuse from this range.