db-system.com

Valid Email Server
Domain Lookup › db-system.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
db-system.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 09:20:02 UTC · ↺ Refresh

MX Hostnames

  • dbsystem-com0e.mail.protection.outlook.com

MX Priorities

  • dbsystem-com0e.mail.protection.outlook.com: 0

A / AAAA Records

  • 181.143.149.36 ↩ static-181-143-149-36.une.net.co

Mail Server IPs

  • 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com

SOA Record

Raw SOA ns45.worldnic.com namehost.worldnic.com 126022510 10800 3600 604800 3600
Primary NS (mname)
ns45.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126022510
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns46.worldnic.com
ns45.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 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

✗ 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

5 records
  • google-site-verification=kpjzIIXO4widQxI7rwArYz2S3SaKP33Vuz89pqBwhQI
  • MS=38AA766DE5A08CF2DB773591D59F866F93A9EBA0
  • google-site-verification=uxOKbgkn3xlX7SISzIrnHun2UQNfI-bruGqHcu1ugAg
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms92886119
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