3db.net.br

Valid Email Server
Domain Lookup › 3db.net.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
3db.net.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 03:26:19 UTC · ↺ Refresh

MX Hostnames

  • 3db-net-br.mail.protection.outlook.com

MX Priorities

  • 3db-net-br.mail.protection.outlook.com: 0

A / AAAA Records

  • 129.148.21.45 (no PTR)

Mail Server IPs

  • 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.p201.dns.oraclecloud.net hostmaster.3db.net.br 87 3600 600 604800 1800
Primary NS (mname)
ns1.p201.dns.oraclecloud.net
Admin Email (rname)
hostmaster@3db.net.br
Serial
87
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ns2.p201.dns.oraclecloud.net
ns4.p201.dns.oraclecloud.net
ns1.p201.dns.oraclecloud.net
ns3.p201.dns.oraclecloud.net
ns1.3db-ns.com.br
ns2.3db-ns.com.br

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:168.138.230.109 ip4:179.255.19.162 ip4:144.22.203.84 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ 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

4 records
  • bw=kJNt+QLD/tyU9vtINJ9A/q+d/pWdHbS0mT2pRkxckVFQ
  • SPFv=spf1 ip4:168.138.230.109 ip4:179.255.19.162 ip4:144.22.203.84 include:spf.protection.outlook.com ~all
  • MS=ms82066299
  • MS=2913268D7812FAC0E9F3212BCCC9DCAEB3BAD4BA
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