Email Deliverability
kakao.com
B
70 / 100
4
MX hosts
4
MX IPs
1
Blacklisted
4
No PTR
4
No FCrDNS
Issues (7)
highDMARC policy is none (monitor only)
highMX IP 121.53.85.40 is blacklisted
highMX IP 121.53.85.40 has no PTR (reverse DNS)
highMX IP 211.183.209.53 has no PTR (reverse DNS)
highMX IP 211.249.219.44 has no PTR (reverse DNS)
highMX IP 211.183.210.53 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)