secure-mailgate.com has no AAAA records.
Apex domains cannot have CNAME records.
spf2.0/mfrom ip4:46.243.95.179 ip4:46.243.95.180 ip4:128.127.70.0/26 ip4:89.22.108.0/24 ip4:192.162.87.0/24 ip4:109.237.142.0/24 ip6:2a02:a60:0:5::/64 ip4:46.243.88.174 ip4:46.243.88.175 ip4:46.243.88.176 ip4:46.243.88.177 ip4:31.47.251.17 a:mailcloud.dog
ado.de -all
Zone apex
Start of authority
Email
Serial
2025120506
Refresh
1d
Retry
30m
Expire
7d
Negative cache TTL
30m