Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
diamondbackmechanical.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 13:14:59 UTC · ↺ Refresh
MX Hostnames
- diamondbackmechanical-com.mail.protection.outlook.com
MX Priorities
- diamondbackmechanical-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.68.72 (no PTR)
- 172.67.191.170 (no PTR)
- 2606:4700:3030::ac43:bfaa
- 2606:4700:3031::6815:4448
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
lennon.ns.cloudflare.com dns.cloudflare.com 2398805124 10000 2400 604800 1800
Primary NS (mname)
lennon.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398805124
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
marlowe.ns.cloudflare.com
lennon.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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- SPFv=spf1 include:spf.protection.outlook.com -all
- v=verifydomain MS=9590990
- apple-domain-verification=g5oXBmEAnkV4a1xj
Full email verification for diamondbackmechanical.com
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