a1contracting.us

Valid Email Server
Domain Lookup › a1contracting.us

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
a1contracting.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 05:39:12 UTC · ↺ Refresh

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MX Hostnames

  • a1contracting-us.mail.protection.outlook.com

MX Priorities

  • a1contracting-us.mail.protection.outlook.com: 0

A / AAAA Records

  • 204.144.184.103 ↩ cpanel4.darau.com

Mail Server IPs

  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.darau.com dan.danoman.com 2023122300 3600 7200 1209600 86400
Primary NS (mname)
ns1.darau.com
Admin Email (rname)
dan@danoman.com
Serial
2023122300
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.darau.com
ns3.darau.com

SPF Record

✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:204.144.184.64/26 +include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • MS=ms03312021
  • MS=ms14203934
  • SPFv=spf1 +a +mx +ip4:204.144.184.64/26 +include:spf.protection.outlook.com ~all
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