Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
chairholder.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 18:47:52 UTC · ↺ Refresh
MX Hostnames
- mx01.hornetsecurity.com
- mx03.hornetsecurity.com
- mx02.hornetsecurity.com
- mx04.hornetsecurity.com
MX Priorities
- mx03.hornetsecurity.com: 30
- mx04.hornetsecurity.com: 40
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
A / AAAA Records
- 62.113.218.67 (no PTR)
Mail Server IPs
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
SOA Record
Raw SOA
eloise.ns.cloudflare.com dns.cloudflare.com 2399919919 10000 2400 604800 1800
Primary NS (mname)
eloise.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399919919
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
razvan.ns.cloudflare.com
eloise.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.kundenserver.de include:spf.protection.outlook.com include:spf.sendinblue.com include:spf.hornetsecurity.com include:spf.cloud.ci-solution.com ip4:195.95.146.227 ip6:2a05:f00:1000:206::152 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms77683212
- SPFv=spf1 include:_spf.kundenserver.de include:spf.protection.outlook.com include:spf.sendinblue.com include:spf.hornetsecurity.com include:spf.cloud.ci-solution.com ip4:195.95.146.227 ip6:2a05:f00:1000:206::152 -all
- v=verifydomain MS=2003611
Full email verification for chairholder.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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