ntn.com.br

Valid Email Server
Domain Lookup › ntn.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ntn.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-29 02:20:48 UTC · ↺ Refresh

MX Hostnames

  • ces1.ntn-snr.com
  • ces2.ntn-snr.com

MX Priorities

  • ces1.ntn-snr.com: 10
  • ces2.ntn-snr.com: 10

A / AAAA Records

  • 147.79.94.65 (no PTR)

Mail Server IPs

  • 23.90.111.183 ↩ esa.hc857-96.eu.iphmx.com
  • 23.90.102.186 ↩ esa.hc857-96.eu.iphmx.com

SOA Record

Raw SOA ns1.ntn-snr.com hostmaster.ntn-snr.fr.ntn.com.br 2025050701 21600 7200 1209600 86400
Primary NS (mname)
ns1.ntn-snr.com
Admin Email (rname)
hostmaster@ntn-snr.fr.ntn.com.br
Serial
2025050701
Refresh
21600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.ntn-snr.com
ns2.ntn-snr.com
ns6.gandi.net

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.medtra.fr ip4:46.235.17.224/27 ip4:198.21.6.129 ip4:77.158.78.113 ip4:194.51.15.51 exists:%{i}.spf.hc857-96.eu.iphmx.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;pct=0;adkim=r;aspf=r;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
⚠ Policy applies to 0% of failing messages only

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

2 records
  • SPFv=spf1 mx include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.medtra.fr ip4:46.235.17.224/27 ip4:198.21.6.129 ip4:77.158.78.113 ip4:194.51.15.51 exists:%{i}.spf.hc857-96.eu.iphmx.com -all
  • MS=ms32144310
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