Email Deliverability
uni-sb.de
B
74 / 100
3
MX hosts
3
MX IPs
0
Blacklisted
1
No PTR
1
No FCrDNS
Issues (4)
criticalNo DMARC record
highNo DKIM selectors found
highMX IP 134.96.252.33 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)