duarteusd.org

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
duarteusd.org
Yes
โœ“ Yes
Unknown
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-18 05:59:28 UTC ยท โ†บ Refresh

MX Hostnames

  • ussf34.upstreamsecurity.net
  • ussf55.upstreamsecurity.net
  • ussf542.upstreamsecurity.net
  • ussf342.upstreamsecurity.net
  • ussf54.upstreamsecurity.net
  • ussf552.upstreamsecurity.net

MX Priorities

  • ussf54.upstreamsecurity.net: 1
  • ussf55.upstreamsecurity.net: 1
  • ussf34.upstreamsecurity.net: 1
  • ussf542.upstreamsecurity.net: 20
  • ussf552.upstreamsecurity.net: 20
  • ussf342.upstreamsecurity.net: 20

A / AAAA Records

  • 104.16.158.133 (no PTR)
  • 104.16.159.133 (no PTR)
  • 104.18.189.233 (no PTR)
  • 104.18.190.233 (no PTR)

Mail Server IPs

  • 38.99.86.54 โ†ฉ USSF54.upstreamsecurity.net
  • 38.99.86.55 โ†ฉ USSF55.upstreamsecurity.net
  • 38.99.86.34 โ†ฉ USSF34.upstreamsecurity.net
  • 50.145.4.54 โ†ฉ USSF542.upstreamsecurity.net
  • 50.145.4.55 โ†ฉ USSF552.upstreamsecurity.net

SOA Record

Raw SOA ns27.domaincontrol.com dns.jomax.net 2025082801 28800 7200 604800 600
Primary NS (mname)
ns27.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025082801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns28.domaincontrol.com
ns27.domaincontrol.com

SPF Record

โœ“ Soft Fail (~all)
v=spf1 +mx include:spf.protection.outlook.com include:_spf.google.com ip4:204.102.96.19 ip4:173.198.1.139 ip4:10.2.16.103 ~all
๐Ÿ“Š DNS lookups: 3/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1;
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]
โ†ณ Subdomain policy: reject

DKIM Selectors

โœ“ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: google

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

All TXT Records

6 records
  • MS=ms73616036
  • RS3VIVbUMtFeWVTkJfBO7RpkRH9xTjJGZTswTVmKG6gX2UlPx7oMbw9v7jx9GhdbNhO+tPlZB04IuunEpKitrg==
  • adobe-idp-site-verification=6df3bbcbbb9f12c129900d156a0a6734256414cb6a29988f013fdb7e8595a785
  • apple-domain-verification=ZVJnQXbHWtmaZzLp
  • SPFv=spf1 +mx include:spf.protection.outlook.com include:_spf.google.com ip4:204.102.96.19 ip4:173.198.1.139 ip4:10.2.16.103 ~all
  • google-site-verification=vGcb8A_l1McvMke4FhXqC03wX5mGpRSCNiVwpj-xRUQ
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