You might want to consult Spamhaus's TLD spam reputation ranking: https://www.spamhaus.org/reputation-statistics/cctlds/domains https://www.spamhaus.org/reputa

You might want to consult Spamhaus's TLD spam reputation ranking: https://www.spamhaus.org/reputation-statistics/cctlds/domains https://www.spamhaus.org/reputation-statistics/cctlds/domain... God only knows how much weight it has on spam filtering policies of the many providers we have, but you'll at least know whether your TLD is considered a particularly bad offender with all that might entail.