tfs.com.br

Valid Email Server
Domain Lookup › tfs.com.br

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
tfs.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 04:30:07 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 20.85.52.51 (no PTR)

Mail Server IPs

  • 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
  • 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
  • 52.101.198.0 ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
  • 52.101.198.1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com
  • 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
  • 2a01:111:f403:c94a::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c94a::1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com

SOA Record

Raw SOA a.sec.dns.br hostmaster.registro.br 2026117000 86400 900 604800 900
Primary NS (mname)
a.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026117000
Refresh
86400s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

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

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:20.96.184.146/32 ip4:20.96.200.191/32 include:sendgrid.net include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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

2 records
  • SPFv=spf1 ip4:20.96.184.146/32 ip4:20.96.200.191/32 include:sendgrid.net include:spf.protection.outlook.com ~all
  • MS=ms51956264
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