Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nxt.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 01:25:45 UTC · ↺ Refresh
MX Hostnames
- mail.nxt.com.br
- nxt-com-br.mail.protection.outlook.com
MX Priorities
- mail.nxt.com.br: 1
- nxt-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 169.55.56.13 ↩ d.38.37a9.ip4.static.sl-reverse.com
Mail Server IPs
- 189.59.94.236 ↩ mail.nxt.com.br
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
a.sec.dns.br hostmaster.registro.br 2026061000 345600 900 604800 900
Primary NS (mname)
a.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026061000
Refresh
345600s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
c.sec.dns.br
a.sec.dns.br
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:189.59.94.236 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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- MS=ms49981245
- SPFv=spf1 a mx ip4:189.59.94.236 include:spf.protection.outlook.com -all
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