Email Deliverability
obi.sk
C
57 / 100
5
MX hosts
4
MX IPs
4
Blacklisted
1
No PTR
4
No FCrDNS
Issues (8)
highMX IP 142.251.179.26 is blacklisted
highMX IP 108.177.123.26 is blacklisted
highMX IP 172.253.116.26 is blacklisted
highMX IP 172.253.157.26 is blacklisted
highMX IP 172.253.157.26 has no PTR (reverse DNS)
mediumMX IP 142.251.179.26 fails FCrDNS check
mediumMX IP 108.177.123.26 fails FCrDNS check
mediumMX IP 172.253.116.26 fails FCrDNS check