Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ntsbrasil.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 03:18:27 UTC · ↺ Refresh
MX Hostnames
- ntsbrasil-com.mail.protection.outlook.com
MX Priorities
- ntsbrasil-com.mail.protection.outlook.com: 0
A / AAAA Records
- 34.230.121.250 ↩ ec2-34-230-121-250.compute-1.amazonaws.com
Mail Server IPs
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.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
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:186.229.55.60 ip4:200.149.31.170 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; fo=1; aspf=r; adkim=s
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
8 records- SPFv=spf1 ip4:186.229.55.60 ip4:200.149.31.170 include:spf.protection.outlook.com -all
- hes=216fd7605e40c330345d56cbc59b4951
- mscid=WIU7q0xWnDljBni5qCJj8CoihWQVcjBuDzFok5fDoJIXPnVrOrkKC3bKqFq6wpt1iKu+YzmZQ99Fmh5yIdpq2A==
- 7CJ93YX2MGDVHRX4F9Q606UMLH6CB3R3F8Q7VA6C
- apple-domain-verification=2eFtr0rZm99fLIVP
- t0tz3qpz67hpw303x02h709mpcbkwnk4
- brevo-code:26ffc6030dd629a387f93dc67609eed2
- XVR71TDKWI5DMJFGWQ005JMED281TP4NY9S7HCVX
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