cubasa.net

Valid Email Server
Domain Lookup › cubasa.net

Domain Overview

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

Checked via [email protected] · 2026-03-31 05:21:47 UTC · ↺ Refresh

MX Hostnames

  • cubasa-net.mail.protection.outlook.com

MX Priorities

  • cubasa-net.mail.protection.outlook.com: 10

A / AAAA Records

  • 192.185.131.189 ↩ mco28.prodns.mx

Mail Server IPs

  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA ns28.prodns.mx root.mco28.prodns.mx 2026031301 86400 7200 3600000 86400
Primary NS (mname)
ns28.prodns.mx
Admin Email (rname)
root@mco28.prodns.mx
Serial
2026031301
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns28.prodns.mx
ns29.prodns.mx

SPF Record

✓ Strict (-all)
v=spf1 ip4:192.185.131.185 ip4:69.49.241.68 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

✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 ip4:192.185.131.185 ip4:69.49.241.68 include:spf.protection.outlook.com -all
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