Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
robertmaster.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 15:25:09 UTC · ↺ Refresh
MX Hostnames
- robertmaster-com.mail.protection.outlook.com
MX Priorities
- robertmaster-com.mail.protection.outlook.com: 0
A / AAAA Records
- 64.71.35.71 (no PTR)
Mail Server IPs
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns39.domaincontrol.com dns.jomax.net 2025081101 28800 7200 604800 3600
Primary NS (mname)
ns39.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025081101
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns40.domaincontrol.com
ns39.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ 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
3 records- NETORGFT8585300.onmicrosoft.com
- SPFv=spf1 include:secureserver.net -all
- google-site-verification=BJoZ6GMTyDMLdxSxU3c8TrPhdQFVr3tW1XhEa9TEp_A
Full email verification for robertmaster.com
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