Email Deliverability
fapesp.br
B
75 / 100
5
MX hosts
12
MX IPs
0
Blacklisted
8
No PTR
9
No FCrDNS
Issues (10)
highDMARC policy is none (monitor only)
highMX IP 52.101.50.4 has no PTR (reverse DNS)
highMX IP 52.101.9.21 has no PTR (reverse DNS)
highMX IP 2a01:111:f403:f902:: has no PTR (reverse DNS)
highMX IP 2a01:111:f403:f805::1 has no PTR (reverse DNS)
highMX IP 2a01:111:f403:c946::1 has no PTR (reverse DNS)
highMX IP 2a01:111:f403:f802::2 has no PTR (reverse DNS)
highMX IP 143.108.10.210 has no PTR (reverse DNS)
highMX IP 143.108.10.200 has no PTR (reverse DNS)
mediumMX IP 52.101.194.4 fails FCrDNS check