Email Deliverability
st.nu
D
46 / 100
5
MX hosts
0
MX IPs
0
Blacklisted
0
No PTR
0
No FCrDNS
Issues (3)
criticalNo MX records resolve to IP addresses
mediumSPF uses ~all (softfail) instead of -all (hardfail)
lowDMARC policy is quarantine, not reject
st.nu