adsrvr.org

Valid Email Server
Domain Lookup › adsrvr.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
adsrvr.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-17 16:30:24 UTC · ↺ Refresh

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MX Hostnames

  • smtp.secureserver.net
  • mailstore1.secureserver.net

MX Priorities

  • smtp.secureserver.net: 0
  • mailstore1.secureserver.net: 10

A / AAAA Records

  • 108.138.64.80 ↩ server-108-138-64-80.iad12.r.cloudfront.net
  • 108.138.64.103 ↩ server-108-138-64-103.iad12.r.cloudfront.net
  • 108.138.64.93 ↩ server-108-138-64-93.iad12.r.cloudfront.net
  • 108.138.64.48 ↩ server-108-138-64-48.iad12.r.cloudfront.net
  • 2600:9000:2508:ce00:12:e08a:be80:93a1
  • 2600:9000:2508:5200:12:e08a:be80:93a1
  • 2600:9000:2508:b600:12:e08a:be80:93a1
  • 2600:9000:2508:8c00:12:e08a:be80:93a1
  • 2600:9000:2508:5800:12:e08a:be80:93a1
  • 2600:9000:2508:7600:12:e08a:be80:93a1
  • 2600:9000:2508:3600:12:e08a:be80:93a1
  • 2600:9000:2508:8600:12:e08a:be80:93a1

Mail Server IPs

  • 216.69.141.113 ↩ osplibsmtp03-v01.prod.phx3.secureserver.net
  • 216.69.141.84 ↩ osplibsmtp02-v01.prod.phx3.secureserver.net
  • 216.69.141.71 ↩ osplibsmtp01-v01.prod.phx3.secureserver.net
  • 216.69.141.162 ↩ osplibsmtp02-v02.prod.phx3.secureserver.net
  • 216.69.141.114 ↩ osplibsmtp03-v02.prod.phx3.secureserver.net
  • 216.69.141.78 ↩ osplibsmtp01-v02.prod.phx3.secureserver.net

SOA Record

Raw SOA dns1.p08.nsone.net hostmaster.nsone.net 1747214599 10800 3600 2592000 600
Primary NS (mname)
dns1.p08.nsone.net
Admin Email (rname)
hostmaster@nsone.net
Serial
1747214599
Refresh
10800s
Retry
3600s
Expire
2592000s
Minimum TTL
600s

Nameservers (NS)

ns03.ttddnnss.com
ns04.ttddnnss.com
dns1.p08.nsone.net
dns2.p08.nsone.net
dns3.p08.nsone.net
dns4.p08.nsone.net
ns01.ttddnnss.com
ns02.ttddnnss.com

SPF Record

✓ Strict (-all)
v=spf1 include:thetradedesk.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

6 records
  • 4e4b395d-044a-4e63-aa1a-f7bbdfd7e90a
  • MS=ms72201950
  • SPFv=spf1 include:thetradedesk.com -all
  • _globalsign-domain-verification=KnmR_y2aB1x3iRK_rmagVgzw08k-QcFdSE52Q1xHTX
  • _globalsign-domain-verification=rchoGDWwF5orbqIOBKK13KAVOKC0iBc2IsfX2jzqEX
  • 30d1bf7c-57ed-487a-9998-2f74ce7b0e2f
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