tdf.org

Valid Email Server
Domain Lookup › tdf.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tdf.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 11:47:21 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • tdf-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 38.105.233.123 ↩ nycgw123.redsteps.org

Mail Server IPs

  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.tdf.org tdf.org 724 900 600 86400 3600
Primary NS (mname)
ns1.tdf.org
Admin Email (rname)
tdf@org
Serial
724
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s

Nameservers (NS)

ns1.tdf.org
ns2.tdf.org
daikanyama2.tdf.org

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com a:nycgw28.tdf.org a:postoffice.tdf.org a:nycgw52.tdf.org a:nycgw2.redsteps.org a:nycgw120.redsteps.org a:nycgw052.tdf.org a:t-mx.tdf.org -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

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

7 records
  • MS=ms95399639
  • google-site-verification=jkXXO4CQvGROrhVzZDSQEeu3pNb0X9eG-WuCudQAaQ4
  • yahoo-verification-key=M3PWrVrQ2TJX9RevVj2QA6iJtmqzDC135zzAwuPQdL0=
  • google-site-verification=Uh7C-rM5aGlj0rIDTIob8K65fiamTj2dOC32u8iB6CQ
  • vbwKeh3xnzWDR0mpdQ3ImW6qWWQh5+K2O1Xs/wnZ0IiIIuv0rqkK/yz1ky68qgySlIV8KlpzMNEyGIfBuvDsYQ==
  • asv=42ae8fa6b54a156c2f1ae2055671158b
  • SPFv=spf1 include:spf.protection.outlook.com a:nycgw28.tdf.org a:postoffice.tdf.org a:nycgw52.tdf.org a:nycgw2.redsteps.org a:nycgw120.redsteps.org a:nycgw052.tdf.org a:t-mx.tdf.org -all
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