Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
undergroundcontractors.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 09:28:00 UTC · ↺ Refresh
MX Hostnames
- undergroundcontractors-com.mail.protection.outlook.com
MX Priorities
- undergroundcontractors-com.mail.protection.outlook.com: 0
A / AAAA Records
- 192.249.125.42 ↩ ded3372.inmotionhosting.com
Mail Server IPs
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns25.domaincontrol.com dns.jomax.net 2025101401 28800 7200 604800 600
Primary NS (mname)
ns25.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025101401
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns26.domaincontrol.com
ns25.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 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
- apple-domain-verification=3ImmArjsKSgw9EU9
- zoho-verification=zb44452694.zmverify.zoho.com
Full email verification for undergroundcontractors.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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