tffirm.com

Valid Email Server
Domain Lookup › tffirm.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tffirm.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 00:34:56 UTC · ↺ Refresh

MX Hostnames

  • tffirm-com.mail.protection.outlook.com

MX Priorities

  • tffirm-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.67.143.235 (no PTR)
  • 104.21.55.13 (no PTR)
  • 2606:4700:3036::6815:370d
  • 2606:4700:3033::ac43:8feb

Mail Server IPs

  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA melody.ns.cloudflare.com dns.cloudflare.com 2397237915 10000 2400 604800 1800
Primary NS (mname)
melody.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397237915
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

melody.ns.cloudflare.com
paul.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

4 records
  • v=verifydomain MS=7743438
  • C0L2O19375
  • MS=ms34295946
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com -all
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