institutojef.org.br

Valid Email Server
Domain Lookup › institutojef.org.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
institutojef.org.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 07:56:28 UTC · ↺ Refresh

MX Hostnames

  • institutojef-org-br.mail.protection.outlook.com

MX Priorities

  • institutojef-org-br.mail.protection.outlook.com: 10

A / AAAA Records

  • 162.241.62.246 ↩ 162-241-62-246.unifiedlayer.com

Mail Server IPs

  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.9.17 (no PTR)
  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA a.sec.dns.br hostmaster.registro.br 2026077000 86400 900 604800 900
Primary NS (mname)
a.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026077000
Refresh
86400s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

a.sec.dns.br
c.sec.dns.br

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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
  • google-gws-recovery-domain-verification=57289581
  • google-site-verification=LtJX4Hnl9wALPD69XFJR_767AjPdilZGagEV2w4sh7o
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms17084022
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