onsnet.nu

Valid Email Server
Domain Lookup › onsnet.nu
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
onsnet.nu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 03:16:34 UTC · ↺ Refresh

MX Hostnames

  • mx.kpnmail.nl

MX Priorities

No priority data.

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns1.kpn.net
ns11.kpn.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.ews.kpnxchange.com ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=r; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Strict
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 include:spf.ews.kpnxchange.com ?all
  • MS=ms31202316
Full email verification for onsnet.nu

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits