Email Deliverability
linuxfoundation.org
B
71 / 100
1
MX hosts
9
MX IPs
0
Blacklisted
6
No PTR
7
No FCrDNS
Issues (9)
highDMARC policy is none (monitor only)
highMX IP 173.194.45.27 has no PTR (reverse DNS)
highMX IP 172.253.62.26 has no PTR (reverse DNS)
highMX IP 192.178.218.27 has no PTR (reverse DNS)
highMX IP 2607:f8b0:4004:c29::1a has no PTR (reverse DNS)
highMX IP 2607:f8b0:4004:c07::1a has no PTR (reverse DNS)
highMX IP 2607:f8b0:4004:c25::1b has no PTR (reverse DNS)
mediumMX IP 2607:f8b0:4004:c29::1b fails FCrDNS check
lowOnly one MX host