topper.com

Valid Email Server
Domain Lookup › topper.com

Domain Overview

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

Checked via [email protected] · 2026-04-02 01:05:38 UTC · ↺ Refresh

MX Hostnames

  • topper-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 198.202.211.1 (no PTR)

Mail Server IPs

  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns37.worldnic.com namehost.worldnic.com 125091210 10800 3600 604800 3600
Primary NS (mname)
ns37.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125091210
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns37.worldnic.com
ns38.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:190.221.0.240/28 ip4:181.45.253.128/28 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

3 records
  • MS=ms50763707
  • SPFv=spf1 ip4:190.221.0.240/28 ip4:181.45.253.128/28 include:spf.protection.outlook.com -all
  • google-site-verification=zHpK6F-jD-661bj6Vechwj5EVJNYlzfbYkvf7UPzGV8
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