Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dercourier.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 01:44:10 UTC · ↺ Refresh
MX Hostnames
- mx01.ionos.de
- mx00.ionos.de
MX Priorities
- mx00.ionos.de: 10
- mx01.ionos.de: 20
A / AAAA Records
- 80.190.152.203 ↩ customermail.eoa.de
Mail Server IPs
- 212.227.15.41 ↩ mx00.kundenserver.de
- 217.72.192.67 ↩ mx01.kundenserver.de
SOA Record
Raw SOA
ns1-01.azure-dns.com mx00.ionos.de 2018080604 28800 7200 1209600 600
Primary NS (mname)
ns1-01.azure-dns.com
Admin Email (rname)
mx00@ionos.de
Serial
2018080604
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns3-01.azure-dns.org
ns4-01.azure-dns.info
ns1-01.azure-dns.com
ns2-01.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:_spf-eu.ionos.com ip4:213.61.253.225 ip4:80.190.151.146 ip4:80.190.152.203 ip4:152.53.153.14 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- zone-ownership-verification-83ca95aa9335d2629d48a7c756f2b7ec1257f7dbfe17fc0f4efd2e60fe42a625
- SPFv=spf1 a mx include:_spf-eu.ionos.com ip4:213.61.253.225 ip4:80.190.151.146 ip4:80.190.152.203 ip4:152.53.153.14 -all
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