Email Deliverability
czu.cz
B
77 / 100
1
MX hosts
8
MX IPs
1
Blacklisted
0
No PTR
0
No FCrDNS
Issues (7)
highMX IP 52.101.73.15 is blacklisted
highMX IP 52.101.73.1 is blacklisted
highMX IP 52.101.68.8 is blacklisted
highMX IP 52.101.73.26 is blacklisted
mediumSPF uses ~all (softfail) instead of -all (hardfail)
lowDMARC policy is quarantine, not reject
lowOnly one MX host