Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gradexconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 21:55:40 UTC · ↺ Refresh
MX Hostnames
- gradexconstruction-com.mail.protection.outlook.com
MX Priorities
- gradexconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 67.222.12.233 ↩ host.cathedralrocks.com
Mail Server IPs
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
ns51.domaincontrol.com dns.jomax.net 2025092300 28800 7200 604800 600
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025092300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns52.domaincontrol.com
ns51.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:12.139.217.194 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
3 records- apple-domain-verification=HsErrn6whjKckHvd
- SPFv=spf1 include:spf.protection.outlook.com ip4:12.139.217.194 -all
- MS=ms43011914
Full email verification for gradexconstruction.com
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