atpco.net

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-25 19:12:20 UTC · ↺ Refresh

MX Hostnames

  • atpco-net.mail.protection.outlook.com

MX Priorities

  • atpco-net.mail.protection.outlook.com: 5

A / AAAA Records

  • 18.238.55.61 ↩ server-18-238-55-61.jfk52.r.cloudfront.net
  • 18.238.55.9 ↩ server-18-238-55-9.jfk52.r.cloudfront.net
  • 18.238.55.49
  • 18.238.55.42

Mail Server IPs

  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns-827.awsdns-39.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-827.awsdns-39.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-827.awsdns-39.net
ns-1090.awsdns-08.org
ns-1762.awsdns-28.co.uk
ns-400.awsdns-50.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.atpco.net include:amazonses.com include:cornerstone.atpco.net include:rp.oracleemaildelivery.com include:eu.rp.oracleemaildelivery.com include:4696307.spf07.hubspotemail.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

23 records
  • uZrMnxwBYwq2O4hvDwrOWl7/pnQmZtWwGSFId8iagIT5nL91lIzCqRJAFKrLrDwqbwspQSDvGn93MffrKc4oHg==
  • amazonses:Yep0W8YZTUNmet6ET27N7OgKcy1ZGkitTHpYvCOd7mo=
  • d365mktkey=6DrLP6lqkSLyMxoZ8wMzprLV92zoazecH8OJpEp3td4x
  • amazonses:XrKMeGo38DZxGes958RWrPmwvXgFNhOuzTR1PwFND4M=
  • unblocked-domain-verification=zf9ZwKU5P5a81baP7Aeb-A==
  • SPFv=spf1 include:spf.atpco.net include:amazonses.com include:cornerstone.atpco.net include:rp.oracleemaildelivery.com include:eu.rp.oracleemaildelivery.com include:4696307.spf07.hubspotemail.net ~all
  • zapier-domain-verification-challenge=f4e50f4c-e22c-44cc-a2c3-a431b14903cc
  • MS=ms71332515
  • miro-verification=be8c8a9ca0025a89edefafd65a14e73a28eea797
  • apple-domain-verification=q4S0fMofFvKlWCwiCe3qNYHfJRMvHJ-QmHt95GhHTis
  • amazonses:DTxpAqs/UP4LyO4IPUTpJ0BIgZyKu14rbkST8wPIMY8=
  • apple-domain-verification=XH32oHcX5NGEBJjd
  • amazonses:vH8Nu5DWzDHrawm7/mkUwLERMpaTTDTZQ+5FR9cxcIw=
  • atlassian-domain-verification=XHghXfDS3fZq8sVjk622BG3LvmPjWkrIt1llVVUy16k/Hmq4SbdAfk86N4B/4s1E
  • google-site-verification=L2eBxJhyjVk0JBNHcs-HllYGnGyEC9b514IbNWLp41I
  • openai-domain-verification=dv-VOGjplIKMIZ1su9XajqIPzQu
  • gitkraken-domain-verification=4eac0caf2e5f5f1533103b743bbaa5bd0e2822ffdd755c7ab91d107d7add4527
  • bw=p528J16KvKPBGJ9EYp4/ypNcmBc6colZeVgXo3Lv+pcT
  • amazonses:nsYjc9JoXssktNREA4vmXbkg5bY6sNORSVPmrATj/q8=
  • amazonses:WXD/gcSNf9jMzngeIrm/nuGylEuWX0tSioKNW93lnl8=
  • docusign=ef31f9e1-3dea-4872-a98f-add0bd90a35b
  • airtable-verification=04c9651f23632b1c6cceed31599007de
  • anthropic-domain-verification-zbxh0y=0RtuZ15YwKXbKI72NmWo6eq0F
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