Email Deliverability
uni-heidelberg.de
A
87 / 100
3
MX hosts
3
MX IPs
0
Blacklisted
2
No PTR
2
No FCrDNS
Issues (3)
highDMARC policy is none (monitor only)
highMX IP 129.206.100.212 has no PTR (reverse DNS)
highMX IP 129.206.100.213 has no PTR (reverse DNS)