1901contracting.com

Valid Email Server
Domain Lookup › 1901contracting.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
1901contracting.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 12:58:10 UTC · ↺ Refresh

MX Hostnames

  • 1901contracting-com.mail.protection.outlook.com

MX Priorities

  • 1901contracting-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 141.193.213.10 (no PTR)

Mail Server IPs

  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com

SOA Record

Raw SOA ns77.domaincontrol.com dns.jomax.net 2023021500 28800 7200 604800 600
Primary NS (mname)
ns77.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2023021500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns78.domaincontrol.com
ns77.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

✗ Missing

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

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

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

All TXT Records

5 records
  • google-site-verification=9o-8pQoSLw4gelwHP9bYXlY8YO666ekKc4FIKrXh-Eo
  • google-site-verification=x-xkMm9EE6HgIfGbsvDA0cuzidRt2G0t4GjnkOdeTpY
  • google-site-verification=V3cwD9ONb8bktGesWBcJvsCFRCZq6wdTkYf8HJ1uGOg
  • google-site-verification=t77akaa1exuOf9zMB-LuayzTKWC3CyfmT8aM-_oUVFw
  • SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for 1901contracting.com

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