usdec.org

Valid Email Server
Domain Lookup › usdec.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
usdec.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-25 11:26:10 UTC · ↺ Refresh

MX Hostnames

  • usdec-org.mail.protection.outlook.com

MX Priorities

  • usdec-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 52.54.112.189 ↩ ec2-52-54-112-189.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA ns-707.awsdns-24.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-707.awsdns-24.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1648.awsdns-14.co.uk
ns-444.awsdns-55.com
ns-707.awsdns-24.net
ns-1052.awsdns-03.org

SPF Record

✓ Strict (-all)
v=spf1 ip4:204.153.45.0/24 include:spf.protection.outlook.com include:364871.spf10.hubspotemail.net include:zcsend.net exists:%{i}.spf.hc5662-46.iphmx.com include:zcsend.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

1 record
  • SPFv=spf1 ip4:204.153.45.0/24 include:spf.protection.outlook.com include:364871.spf10.hubspotemail.net include:zcsend.net exists:%{i}.spf.hc5662-46.iphmx.com include:zcsend.net -all
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