Email Deliverability
g4s.com
A
90 / 100
8
MX hosts
14
MX IPs
0
Blacklisted
2
No PTR
2
No FCrDNS
Issues (3)
highMX IP 2800:3f0:4003:c0f::1a has no PTR (reverse DNS)
highMX IP 2800:3f0:4003:c0f::1a has no PTR (reverse DNS)
lowDMARC policy is quarantine, not reject