marathon.health

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
marathon.health
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 20:20:05 UTC · ↺ Refresh

MX Hostnames

  • marathon-health.mail.protection.outlook.com

MX Priorities

  • marathon-health.mail.protection.outlook.com: 0

A / AAAA Records

  • 199.60.103.77 (no PTR)
  • 199.60.103.177 (no PTR)

Mail Server IPs

  • 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com

SOA Record

Raw SOA ns-179.awsdns-22.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-179.awsdns-22.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1556.awsdns-02.co.uk
ns-179.awsdns-22.com
ns-522.awsdns-01.net
ns-1410.awsdns-48.org

SPF Record

✓ Strict (-all)
v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com include:spf.mandrillapp.com include:amazonses.com include:spf.mailjet.com include:_spf.salesforce.com include:_spf.paubox.com include:22568176.spf10.hubspotemail.net -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; sp=none; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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

5 records
  • apple-domain-verification=1MqyBJxbjlKyjO99
  • asv=9cddb01edaced339e3702d81f1e0b893
  • docusign=09d53681-644d-4848-979e-ebba985b3024
  • SPFv=spf1 include:servers.mcsv.net include:spf.protection.outlook.com include:spf.mandrillapp.com include:amazonses.com include:spf.mailjet.com include:_spf.salesforce.com include:_spf.paubox.com include:22568176.spf10.hubspotemail.net -all
  • 1password-site-verification=TMZWI76OANCOLDQ6CQOHW3Q25U
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