Email Deliverability
rug.nl
B
70 / 100
5
MX hosts
7
MX IPs
2
Blacklisted
2
No PTR
4
No FCrDNS
Issues (8)
highDMARC policy is none (monitor only)
highMX IP 192.178.218.26 is blacklisted
highMX IP 108.177.123.26 is blacklisted
highMX IP 2607:f8b0:4004:c07::1a has no PTR (reverse DNS)
highMX IP 2a00:1450:400b:c02::1a has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
mediumMX IP 192.178.218.26 fails FCrDNS check
mediumMX IP 172.253.116.26 fails FCrDNS check