Email Deliverability
centrum.cz
B
65 / 90
4
MX hosts
4
MX IPs
0
Blacklisted
4
No PTR
4
No FCrDNS
Issues (7)
highSPF record has no 'all' mechanism
highDMARC policy is none (monitor only)
highMX IP 46.255.225.8 has no PTR (reverse DNS)
highMX IP 46.255.227.8 has no PTR (reverse DNS)
highMX IP 46.255.227.8 has no PTR (reverse DNS)
highMX IP 46.255.225.8 has no PTR (reverse DNS)
infoDKIM could not be verified