Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
martinunderground.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-10-30 07:35:07 UTC · ↺ Refresh
MX Hostnames
- martinunderground-com.mail.protection.outlook.com
MX Priorities
- martinunderground-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.223.37 (no PTR)
- 104.21.46.37 (no PTR)
- 2606:4700:3036::6815:2e25
- 2606:4700:3035::ac43:df25
Mail Server IPs
- 52.101.60.176 ↩ mail-bn0pr04cu00900.inbound.protection.outlook.com
- 52.101.8.5 ↩ mail-dm2pr02cu00105.inbound.protection.outlook.com
- 52.101.9.93 ↩ mail-blapr04cu00105.inbound.protection.outlook.com
- 52.101.42.162 ↩ mail-ea3pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c946::16 ↩ mail-ch2pr02cu00206.inbound.protection.outlook.com
- 2a01:111:f403:f909::b ↩ mail-bnypr03cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c95d::6 ↩ mail-ph0pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c946::18 ↩ mail-ch5pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
collins.ns.cloudflare.com dns.cloudflare.com 2418105245 10000 2400 604800 1800
Primary NS (mname)
collins.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2418105245
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dante.ns.cloudflare.com
collins.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:secureserver.net include:mailgun.org -all
📊 DNS lookups: 2/10
✓ 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
1 record- SPFv=spf1 include:secureserver.net include:mailgun.org -all
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