Email Deliverability
korail.com
A
79 / 90
3
MX hosts
3
MX IPs
0
Blacklisted
1
No PTR
2
No FCrDNS
Issues (5)
highMX IP 211.173.10.129 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
mediumMX IP 175.123.132.38 fails FCrDNS check
lowDMARC policy is quarantine, not reject
infoDKIM could not be verified