rsucontractors.com

Valid Email Server
Domain Lookup › rsucontractors.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 08:46:23 UTC · ↺ Refresh

MX Hostnames

  • rsucontractors-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 18.233.217.124 ↩ ec2-18-233-217-124.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA ns03.domaincontrol.com dns.jomax.net 2023042600 28800 7200 604800 600
Primary NS (mname)
ns03.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2023042600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns03.domaincontrol.com
ns04.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:secureserver.net include:amazonses.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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

3 records
  • google-site-verification=aG8UIwNyjFSoZUnHijsS7PDHLDcLqgzX8mtMvrYOEj4
  • google-site-verification=0gUpsUXnfRS3lszxhJcPtuv_cxj_Vd1lyBAusFrMZ4c
  • SPFv=spf1 include:spf.protection.outlook.com include:secureserver.net include:amazonses.com -all
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