jasteer.com

Valid Email Server
Domain Lookup › jasteer.com

Domain Overview

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

Checked via [email protected] · 2026-03-26 05:26:29 UTC · ↺ Refresh

MX Hostnames

  • jasteer-com.mail.protection.outlook.com

MX Priorities

  • jasteer-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 198.185.159.144 (no PTR)
  • 198.49.23.144 (no PTR)
  • 198.49.23.145
  • 198.185.159.145

Mail Server IPs

  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com

SOA Record

Raw SOA ns31.worldnic.com namehost\@worldnic.com 125020419 10800 3600 604800 3600
Primary NS (mname)
ns31.worldnic.com
Admin Email (rname)
namehost\@worldnic@com
Serial
125020419
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns32.worldnic.com
ns31.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spfa.cpmails.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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

4 records
  • MS=ms66294122
  • MS=ms57606193
  • MS=B4877656CC1040431A30E7B53D198AC7583B912F
  • SPFv=spf1 include:spf.protection.outlook.com include:spfa.cpmails.com -all
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