Email Deliverability
studocu.com
B
82 / 100
5
MX hosts
10
MX IPs
2
Blacklisted
3
No PTR
3
No FCrDNS
Issues (5)
highMX IP 172.253.116.27 is blacklisted
highMX IP 172.253.157.26 is blacklisted
highMX IP 192.178.155.27 has no PTR (reverse DNS)
highMX IP 2a00:1450:400b:c02::1a has no PTR (reverse DNS)
highMX IP 2800:3f0:4003:c0f::1b has no PTR (reverse DNS)