Email Deliverability
cas.cz
D
54 / 100
1
MX hosts
8
MX IPs
0
Blacklisted
5
No PTR
7
No FCrDNS
Issues (11)
criticalNo DMARC record
highNo DKIM selectors found
highMX IP 52.101.73.19 has no PTR (reverse DNS)
highMX IP 2a01:111:f403:ca09::8 has no PTR (reverse DNS)
highMX IP 2a01:111:f403:ca04::8 has no PTR (reverse DNS)
highMX IP 2a01:111:f403:ca04::c has no PTR (reverse DNS)
highMX IP 2a01:111:f403:ca04::d has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
mediumMX IP 52.101.68.25 fails FCrDNS check
mediumMX IP 52.101.68.15 fails FCrDNS check
lowOnly one MX host