Email Deliverability
fudan.edu.cn
C
67 / 100
3
MX hosts
7
MX IPs
3
Blacklisted
2
No PTR
2
No FCrDNS
Issues (9)
highMX IP 165.154.206.37 is blacklisted
highMX IP 152.32.234.63 is blacklisted
highMX IP 202.120.224.17 is blacklisted
highMX IP 202.120.224.16 is blacklisted
highMX IP 61.129.42.17 is blacklisted
highMX IP 61.129.42.17 has no PTR (reverse DNS)
highMX IP 61.129.42.16 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
lowDMARC policy is quarantine, not reject