Email Deliverability
sirius.ms
B
70 / 90
5
MX hosts
5
MX IPs
0
Blacklisted
1
No PTR
3
No FCrDNS
Issues (5)
criticalNo DMARC record
highMX IP 2607:f8b0:4004:c08::1b has no PTR (reverse DNS)
mediumMX IP 172.253.116.27 fails FCrDNS check
mediumMX IP 192.178.223.27 fails FCrDNS check
infoDKIM could not be verified