Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
masterdom.inf.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 06:08:31 UTC · ↺ Refresh
MX Hostnames
- masterdom-inf-br.mail.protection.outlook.com
- mail2.masterdom.inf.br
- mail.masterdom.inf.br
MX Priorities
- mail.masterdom.inf.br: 100
- mail2.masterdom.inf.br: 200
- masterdom-inf-br.mail.protection.outlook.com: 0
A / AAAA Records
- 160.153.0.53 ↩ 53.0.153.160.host.secureserver.net
Mail Server IPs
- 209.14.143.100 ↩ 100-143-14-209.net.odhserver.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
e.sec.dns.br hostmaster.registro.br 2026053000 345600 900 604800 900
Primary NS (mname)
e.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026053000
Refresh
345600s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
e.sec.dns.br
f.sec.dns.br
SPF Record
✓ Strict (-all)
v=spf1 ip4:179.191.106.106 ip4:209.14.143.100 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- MS=440296FB51B84AD639A3844C8B7ABD2FB7600151
- facebook-domain-verification=j99aa7j0g401bj0lowur7abl52ganw
- google-site-verification=OmdhtQEPUEQelNu2C3TCX7npQM2cWDRVaa-Q6UPPMm8
- SPFv=spf1 ip4:179.191.106.106 ip4:209.14.143.100 include:spf.protection.outlook.com -all
- eskk7av1vj6pr12ohpedp7dr08
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