tcotw.org

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
tcotw.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 05:25:25 UTC · ↺ Refresh

MX Hostnames

  • tcotw-org.mail.protection.outlook.com
  • tcotw-org.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 172.67.167.188
  • 104.21.12.218
  • 2606:4700:3031::ac43:a7bc
  • 2606:4700:3035::6815:cda

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

jasmine.ns.cloudflare.com
noel.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:12.191.181.74 ip4:67.52.146.187 include:spf.protection.outlook.com include:servers.mcsv.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;pct=100;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

✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ DKIM properly configured for selector: selector1

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

All TXT Records

6 records
  • google-site-verification=DDOV_CEKWUPWHxGrmI0cMyYrlQWq5uTbWEeiekfYcOM
  • SPFv=spf1 ip4:12.191.181.74 ip4:67.52.146.187 include:spf.protection.outlook.com include:servers.mcsv.net -all
  • 7439168395
  • MS=ms20675025
  • dropbox-domain-verification=w5p24s5skr8m
  • facebook-domain-verification=tg5jqv1xzsgwqxapmga946jphvkkfs
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