Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tobiashanstobien.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 20:38:43 UTC · ↺ Refresh
MX Hostnames
- mx03.hornetsecurity.com
- mx04.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
MX Priorities
- mx04.hornetsecurity.com: 40
- mx01.hornetsecurity.com: 10
- mx03.hornetsecurity.com: 30
- mx02.hornetsecurity.com: 20
A / AAAA Records
- 178.254.10.24 ↩ sh16-67.1blu.de
Mail Server IPs
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
SOA Record
Raw SOA
ns01.1blu.de hostmaster.1blu.de 2025090501 43200 5400 604800 14400
Primary NS (mname)
ns01.1blu.de
Admin Email (rname)
hostmaster@1blu.de
Serial
2025090501
Refresh
43200s
Retry
5400s
Expire
604800s
Minimum TTL
14400s
Nameservers (NS)
ns01.1blu.de
ns02.1blu.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.hornetsecurity.com include:spf.protection.outlook.com a:mail.fp-sign.com include:ispgateway.de include:spf.brevo.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- brevo-code:94f6364b04894c4dca1fc35cfe42f20a
- MS=ms35104415
- SPFv=spf1 include:spf.hornetsecurity.com include:spf.protection.outlook.com a:mail.fp-sign.com include:ispgateway.de include:spf.brevo.com ~all
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