Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ndw-gmbh.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 08:09:53 UTC · ↺ Refresh
MX Hostnames
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
- mx03.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
- 167.71.54.21 ↩ vps10.sixtyseven.digital
- 2a03:b0c0:3:f0::1:56f3:7000 ↩ vps10.sixtyseven.digital
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
ns1-07.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-07.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-07.azure-dns.com
ns2-07.azure-dns.net
ns3-07.azure-dns.org
ns4-07.azure-dns.info
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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=ms33945324
- SPFv=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com ~all
- eol3qj7o76l8ffjb86h7d7bhp9
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 ndw-gmbh.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits