optimumhealthcare.org

Valid Email Server
Domain Lookup › optimumhealthcare.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
optimumhealthcare.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 00:18:21 UTC · ↺ Refresh

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MX Hostnames

  • optimumhealthcare-org.mail.protection.outlook.com

MX Priorities

  • optimumhealthcare-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 190.124.46.67 ↩ host.optimumhealthcare.org

Mail Server IPs

  • 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
  • 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.optimumhealthcare.org emckibbin.optimumhealthcare.org 2026022601 3600 1800 1209600 86400
Primary NS (mname)
ns1.optimumhealthcare.org
Admin Email (rname)
emckibbin@optimumhealthcare.org
Serial
2026022601
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns2.optimumhealthcare.org
ns1.optimumhealthcare.org

SPF Record

✓ Strict (-all)
v=spf1 ip4:190.124.46.67 +a +mx include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

4 records
  • SPFv=spf1 ip4:190.124.46.67 +a +mx include:spf.protection.outlook.com -all
  • google-site-verification=iXwxQAcDG2IdOd_g7e792i1F4IUOgvIGPk7jdEt8qCI
  • google-site-verification=MvKYzkI1X1MHcLASKFhHoIUnIVEE1jLtQJ82SE-yFGk
  • google-site-verification=nWu7uKNqVE-68Ri2LljR1Vfs0_Cy1bEQdfe0-en8J3o
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