grunau.us

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
grunau.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 09:56:12 UTC · ↺ Refresh

MX Hostnames

  • grunau-us.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 104.18.17.2
  • 104.18.16.2
  • 2606:4700::6812:1102
  • 2606:4700::6812:1002

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

joel.ns.cloudflare.com
nola.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com a:webmail.apigroupinc.com include:spf.bidtracer.com a:smtp.astea.cloud -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

5 records
  • teamviewer-sso-verification=40fed1bcf2e0459f88becfe3a3be8ba7
  • tsweK0BkfPOUeBaWIrm6Vbz5lhoKzPxIMejvb0UJwUbmsFhwbFWGY9dZFlx1CjBrApEfzDTHioPkRCydKKNsHA==
  • SPFv=spf1 include:spf.protection.outlook.com a:webmail.apigroupinc.com include:spf.bidtracer.com a:smtp.astea.cloud -all
  • MS=ms42499138
  • autodesk-domain-verification=HLkNKCQiqTSFD2Vkw9Lv
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