Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nk-ing.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 15:26:10 UTC · ↺ Refresh
MX Hostnames
- mailprotection.gdata.de
MX Priorities
- mailprotection.gdata.de: 100
A / AAAA Records
- 92.205.171.209 ↩ 209.171.205.92.host.secureserver.net
Mail Server IPs
- 85.215.149.215 ↩ mailprotection.gdata.de
SOA Record
Raw SOA
ns49.domaincontrol.com dns.jomax.net 2026031902 28800 7200 604800 600
Primary NS (mname)
ns49.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031902
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns49.domaincontrol.com
ns50.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:85.183.151.216 ip4:62.54.181.235 ip4:91.137.68.196 ip4:87.140.33.211 include:spf.protection.outlook.com include:ispgateway.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;pct=100;ri=86400;aspf=s;adkim=s;fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
dkim._domainkey
✓ Public key: 216 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
5 records- SPFv=spf1 ip4:85.183.151.216 ip4:62.54.181.235 ip4:91.137.68.196 ip4:87.140.33.211 include:spf.protection.outlook.com include:ispgateway.de -all
- a5k76tcei8v2gd6ufruvjfnp5b
- MS=3F0F3E6BB96BE7C75520A7978C64C1BE37ED0367
- autodesk-domain-verification=kzJNNH86iZnNbGLroMX_
- mgrlno7vu62flfek2sjnk4tv83
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 nk-ing.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits