Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
netzgesellschaft-koethen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 22:35:17 UTC · ↺ Refresh
MX Hostnames
- mx01.hornetsecurity.com
- mx04.hornetsecurity.com
- mx02.hornetsecurity.com
- mx03.hornetsecurity.com
MX Priorities
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
- mx04.hornetsecurity.com: 40
A / AAAA Records
- 212.227.170.77 ↩ havel.pio-it.de
Mail Server IPs
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
SOA Record
Raw SOA
dns19.ovh.net tech.ovh.net 2025021801 86400 3600 3600000 60
Primary NS (mname)
dns19.ovh.net
Admin Email (rname)
tech@ovh.net
Serial
2025021801
Refresh
86400s
Retry
3600s
Expire
3600000s
Minimum TTL
60s
Nameservers (NS)
ns19.ovh.net
dns19.ovh.net
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:77.235.166.130 ip4:62.75.171.214 ip4:185.158.224.23 ip4:185.158.224.22 ip4:80.156.226.130 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; sp=none; aspf=r; adkim=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
2 records- SPFv=spf1 a mx ip4:77.235.166.130 ip4:62.75.171.214 ip4:185.158.224.23 ip4:185.158.224.22 ip4:80.156.226.130 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
- sophos-domain-verification=0da2623cd89f599ef3be61a53b1e144efbfc7907d0f7ae45ed14e4c63da42163
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for netzgesellschaft-koethen.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits