Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
kerntraining.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 01:25:47 UTC · ↺ Refresh
MX Hostnames
- kerntraining-com.mail.protection.outlook.com
MX Priorities
No priority data.
A / AAAA Records
- 31.24.148.253
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
docks06.rzone.de
shades19.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 mx a include:spf.protection.outlook.com include:spf.nl2go.com ip4:31.24.148.253 ip4:83.236.179.59 ip4:62.153.101.158 ip4:109.69.71.25 ip4:91.202.40.194 ip4:87.234.61.92 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=10; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 10% of failing messages only
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
6 records- facebook-domain-verification=pcziipjfb86si7ejhaw4iwfxs1hpi5
- stripe-verification=97828803f084a51ac86f38b2608ddef6a0ddf94aea00bc8c404817492cf6226f
- sendinblue-code:81761ce46ba17813286e0fc23a21f7c7
- SPFv=spf1 mx a include:spf.protection.outlook.com include:spf.nl2go.com ip4:31.24.148.253 ip4:83.236.179.59 ip4:62.153.101.158 ip4:109.69.71.25 ip4:91.202.40.194 ip4:87.234.61.92 -all
- google-site-verification=dY7Pd2oErrBXypxvKWkXv4c4cww5fBhKBGK3gL1jhBY
- MS=ms94830391
Full email verification for kerntraining.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits