Email Deliverability
denverpost.com
A
90 / 100
5
MX hosts
10
MX IPs
0
Blacklisted
2
No PTR
2
No FCrDNS
Issues (3)
highMX IP 2800:3f0:4003:c0f::1b has no PTR (reverse DNS)
highMX IP 2800:3f0:4003:c0f::1b has no PTR (reverse DNS)
lowDMARC policy is quarantine, not reject