i got spam the other day.
i reported it to the upstream provider, as i usually do. one of the upstream addresses to which i sent a report was email@example.com.
today i got a return receipt from that address. it said “Не прочтено” which means “not read”.
seriously, i wonder why a company as big as Rostieliekom would maintain an “abuse@” address and not have it respond to an abuse report. 😕