castlestech.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
castlestech.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 02:59:47 UTC · ↺ Refresh

MX Hostnames

  • castlestech-com.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 104.26.13.89
  • 172.67.72.105
  • 104.26.12.89
  • 2606:4700:20::ac43:4869
  • 2606:4700:20::681a:c59
  • 2606:4700:20::681a:d59

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

cloe.ns.cloudflare.com
oswald.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf2.accessacloud.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],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

8 records
  • lsr52qgbpmvvxtxfgwnq21m3glw5jg5p
  • SPFv=spf1 include:spf.protection.outlook.com include:spf2.accessacloud.com ~all
  • MS=ms90910050
  • _wyrbaskl2miw8s4at8c6vculwu2kpda
  • access-domain-verification=e0b79a892ad5c1a594385c17146fbb80d8c92fa7901554551ac305cce15b832e
  • apple-domain-verification=wKmaiirJuhABfn20
  • chtsec_phishing_test=a1V34AKAlSn7XknYqZRAzh01puUFpJjx
  • google-site-verification=l0NfZImikUp9bP3S5taHfkMyaKEpVNXUhXlxt0Z_RUI
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