Email Deliverability
island.io
A
80 / 90
5
MX hosts
3
MX IPs
0
Blacklisted
2
No PTR
2
No FCrDNS
Issues (4)
highMX IP 172.253.115.27 has no PTR (reverse DNS)
highMX IP 2a00:1450:400c:c23::1a has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
infoDKIM could not be verified