defensx.com

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

Domain Overview

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

Checked via [email protected] · 2026-05-21 10:30:42 UTC · ↺ Refresh

MX Hostnames

  • defensx-com.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 104.20.35.30
  • 172.66.146.35
  • 2606:4700:10::6814:231e
  • 2606:4700:10::ac42:9223

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

aria.ns.cloudflare.com
chris.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:mail.zendesk.com include:24091239.spf05.hubspotemail.net ip4:95.216.171.231 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

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

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

7 records
  • google-site-verification=c85mSUywZSqZjsx_FNksqzozdSgASDSHGAi1YavPOsk
  • google-site-verification=udQJRFQ-PUz1dF1DHVSfIaQyRgOXfvj5baEygiJeYoA
  • linkedin-site-verification=eb5fe499-4e4a-451e-8f3c-7fe94b5b7152
  • SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:mail.zendesk.com include:24091239.spf05.hubspotemail.net ip4:95.216.171.231 -all
  • MS=ms17748233
  • anthropic-domain-verification-nx31cb=RK45eWH6G6fO4nq3yEGV929Ac
  • atlassian-domain-verification=XnptcNF900VMZAahcNiZ55x01GSAxOWa5MvRt838d/svm3Xyqmjy1foOMzsJd4EQ
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