ntfb.org

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
ntfb.org
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-03-21 03:51:08 UTC ยท โ†บ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 40.70.219.219 (no PTR)

Mail Server IPs

  • 52.101.9.2 โ†ฉ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.42.16 โ†ฉ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.11.10 โ†ฉ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 52.101.40.24 โ†ฉ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 โ†ฉ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 โ†ฉ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 โ†ฉ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: โ†ฉ mail-bn1pr21cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns3.worldnic.com namehost.worldnic.com 126031914 10800 3600 604800 3600
Primary NS (mname)
ns3.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031914
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3.worldnic.com
ns4.worldnic.com

SPF Record

โœ“ Strict (-all)
v=spf1 mx ip4:191.237.4.149 ip4:104.209.35.28 ip4:148.66.206.4 ip4:148.66.205.210 ip4:52.44.253.12 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ip4:216.235.195.0/24 include:spf.protection.outlook.com include:spf.happyfox.com include:icpbounce.com include:_spf.smtp.com include:spf.constantcontact.com include:5fcaad.workshop-spf.net -all
๐Ÿ“Š DNS lookups: 7/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine โ€” good protection (failing mail goes to spam)
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

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

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

All TXT Records

16 records
  • pr9k4rnr7jenvvr0b1kr7ght8q
  • iContact1468492
  • SPFv=spf1 mx ip4:191.237.4.149 ip4:104.209.35.28 ip4:148.66.206.4 ip4:148.66.205.210 ip4:52.44.253.12 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ip4:216.235.195.0/24 include:spf.protection.outlook.com include:spf.happyfox.com include:icpbounce.com include:_spf.smtp.com include:spf.constantcontact.com include:5fcaad.workshop-spf.net -all
  • asv=ec6c2318dfa7b6dd6c5d9684cbdbba48
  • ZOOM_verify_qwXn6mk9SBWdVjGebPLcUw
  • zenqms-domain-verification=8368a189f9e1ec08a9f2b0a64c48b40e75ed4c0e37d59963f757f27eac13ba16
  • docusign=6b2846d0-87b5-4c64-a25c-05e72583f543
  • apple-domain-verification=y4OXqoBOKT18V7ka
  • nD9xKiUi2f9uaYW04wNfG7U7RonUQU4DQW3A1prVkBD8hBRllCcOsgK/CeAWwxSTNQM41Rvv3EbqNHxIBTU36A==
  • 00D4x000004yatY=1TBVV00000000mP
  • glcmptcrcpsino8o6g9vub109j
  • UKLQLLTB6JGVRKHWFSBMWDHCY40PD1WPCVJ7B7NWC
  • facebook-domain-verification=iopv17vosv95s098obof7lgciuoz1k
  • google-site-verification=mrRlphuWO_oewBXMhcP49bHtQzCyJcckt8MxtMIz8vE
  • asv=e3af4c4bd844484bd1f2e104364f7c91
  • p1tl12rffo91jjaa3mk0dph8dm
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