grupotb.com.br

Valid Email Server
Domain Lookup › grupotb.com.br

Domain Overview

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

Checked via [email protected] · 2026-04-02 12:25:57 UTC · ↺ Refresh

MX Hostnames

  • grupotb-com-br.mail.protection.outlook.com

MX Priorities

  • grupotb-com-br.mail.protection.outlook.com: 0

A / AAAA Records

  • 191.241.248.6 (no PTR)
  • 189.44.81.74 ↩ 189-44-81-74.customer.tdatabrasil.net.br

Mail Server IPs

  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA genoma.tbgrupo.com.br postmaster.grupotb.com.br 2018032635 7200 900 1209600 86400
Primary NS (mname)
genoma.tbgrupo.com.br
Admin Email (rname)
postmaster@grupotb.com.br
Serial
2018032635
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

atena.tbservicos.com.br
genoma.tbgrupo.com.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

3 records
  • MS=ms80955887
  • google-site-verification=Sr_AijWKcL3pht_--kCVETOKcoh7wxE_75v8xFeuHxA
  • SPFv=spf1 include:spf.protection.outlook.com -all
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