Email Deliverability
591.com.tw
A
85 / 100
5
MX hosts
2
MX IPs
0
Blacklisted
2
No PTR
2
No FCrDNS
Issues (4)
highDMARC policy is none (monitor only)
highMX IP 203.69.66.146 has no PTR (reverse DNS)
highMX IP 203.69.66.146 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)