Email Deliverability
cycu.edu.tw
C
55 / 100
1
MX hosts
1
MX IPs
1
Blacklisted
1
No PTR
1
No FCrDNS
Issues (5)
highDMARC policy is none (monitor only)
highMX IP 140.135.66.72 is blacklisted
highMX IP 140.135.66.72 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
lowOnly one MX host