all of their dns records are now gone, including webmail and MX (i.e. inbound mail). hasn't fully propagated yet
$ nslookup cock.li common.dot.dns.yandex.net
;; Got SERVFAIL reply from 77.88.8.8, trying next server
Server: common.dot.dns.yandex.net
Address: 77.88.8.1#53
** server can't find cock.li: SERVFAIL