capitolcontractorsinc.com

Valid Email Server
Domain Lookup › capitolcontractorsinc.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
capitolcontractorsinc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 03:11:47 UTC · ↺ Refresh

MX Hostnames

  • capitolcontractorsinc-com.mail.protection.outlook.com

MX Priorities

  • capitolcontractorsinc-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 209.151.152.224 ↩ infinity-shared-1.sentree.io

Mail Server IPs

  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.sentree.io hostmaster.sentree.io 2008010215 43200 3600 1209600 180
Primary NS (mname)
ns1.sentree.io
Admin Email (rname)
hostmaster@sentree.io
Serial
2008010215
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns3.sentree.io
ns2.sentree.io
ns1.sentree.io
ns4.sentree.io

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:73.31.215.1 ip4:66.96.128.0/18 include:spf.protection.outlook.com include:_spf.sentree.io ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

2 records
  • MS=ms78988966
  • SPFv=spf1 ip4:73.31.215.1 ip4:66.96.128.0/18 include:spf.protection.outlook.com include:_spf.sentree.io ~all
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