Email Deliverability
jstor.org
C
62 / 90
1
MX hosts
8
MX IPs
0
Blacklisted
5
No PTR
6
No FCrDNS
Issues (10)
highMX IP 52.101.9.17 has no PTR (reverse DNS)
highMX IP 52.101.40.24 has no PTR (reverse DNS)
highMX IP 2a01:111:f403:c922:: has no PTR (reverse DNS)
highMX IP 2a01:111:f403:f912:: has no PTR (reverse DNS)
highMX IP 2a01:111:f403:f802::2 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
mediumMX IP 2a01:111:f403:f802::3 fails FCrDNS check
lowDMARC policy is quarantine, not reject
lowOnly one MX host
infoDKIM could not be verified