Email Deliverability
t-systems.com
A
85 / 100
1
MX hosts
2
MX IPs
0
Blacklisted
1
No PTR
2
No FCrDNS
Issues (5)
highMX IP 3.126.204.238 has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
mediumMX IP 3.71.246.67 fails FCrDNS check
lowDMARC policy is quarantine, not reject
lowOnly one MX host