alfa.br

Valid Email Server
Domain Lookup › alfa.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
alfa.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 08:41:05 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
  • 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA d.sec.dns.br hostmaster.registro.br 2026088001 345600 900 604800 900
Primary NS (mname)
d.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026088001
Refresh
345600s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

d.sec.dns.br
e.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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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