0x0.sk

Valid Email Server
Domain Lookup › 0x0.sk
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
0x0.sk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-28 10:43:46 UTC · ↺ Refresh

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MX Hostnames

  • mxext3.mailbox.org
  • mxext1.mailbox.org
  • mxext2.mailbox.org

MX Priorities

No priority data.

A / AAAA Records

  • 104.21.86.23
  • 172.67.214.56
  • 2606:4700:3030::ac43:d638
  • 2606:4700:3031::6815:5617

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

rajeev.ns.cloudflare.com
dara.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:mailbox.org ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)

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

6 records
  • sl-verification=wwqzqdlyokscrrpjdxkwxscxvkwuhl
  • SPFv=spf1 include:mailbox.org ~all
  • google-site-verification=5VSOLs6dWElK7JdmW0cM6DtXDIPHeD81DOPdeXQ92N0
  • google-site-verification=J_BTo63vPAaH71na8Q1R_iVmuLDbiQmgG7MlRBmNpaM
  • keybase-site-verification=m_UMJiEahb6n4EO4YQlubuIi-gFWFMpTJcz1eIQO2F8
  • openpgp4fpr:E4E133AD32C53C62CBB9A0E906DB2CB984185A93
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