ridleycollege.com

Valid Email Server
Domain Lookup › ridleycollege.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
ridleycollege.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 08:36:35 UTC · ↺ Refresh

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MX Hostnames

  • ridleycollege-com.mail.protection.outlook.com

MX Priorities

  • ridleycollege-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.18.29.67 (no PTR)
  • 104.18.28.67 (no PTR)

Mail Server IPs

  • 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com

SOA Record

Raw SOA alpha.vaxxine.com postmaster.alpha.vaxxine.com 66 300 60 1209600 43200
Primary NS (mname)
alpha.vaxxine.com
Admin Email (rname)
postmaster@alpha.vaxxine.com
Serial
66
Refresh
300s
Retry
60s
Expire
1209600s
Minimum TTL
43200s

Nameservers (NS)

dns2.vaxxine.com
dns1.vaxxine.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:341834927.spf01.hubspotemail.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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

7 records
  • E5201599517727F043A51355F480F9D40920990A
  • adobe-idp-site-verification=20484f71825ce5805ee98a0b7b28f0d7a0e7edcf7f94c63884104d19ccb41a49
  • apple-domain-verification=v02gfi1Ex2Aw3tBq
  • solarwinds-service0desk-verification=c3a9ebfc3518c2c95354bc6deba65ffe
  • jamf-site-verification=hQTiYVYUryvDIq9V0qD38A
  • SPFv=spf1 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:341834927.spf01.hubspotemail.net ~all
  • 4T427XE09Z7APR4Q7WISUXT6ZEB4MFTYAPR6YOGPM
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