harvardco.com

Valid Email Server
Domain Lookup › harvardco.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
harvardco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 19:59:38 UTC · ↺ Refresh

MX Hostnames

  • harvardco-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 192.185.21.161 ↩ 192-185-21-161.unifiedlayer.com

Mail Server IPs

  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com

SOA Record

Raw SOA ns8153.hostgator.com root.gator4077.hostgator.com 2026032400 86400 7200 3600000 86400
Primary NS (mname)
ns8153.hostgator.com
Admin Email (rname)
root@gator4077.hostgator.com
Serial
2026032400
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns8154.hostgator.com
ns8153.hostgator.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:192.185.4.88 ip4:50.116.92.233 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ 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

3 records
  • forward-email-site-verification=pkKzaFiIHX
  • SPFv=spf1 ip4:192.185.4.88 ip4:50.116.92.233 include:secureserver.net -all
  • MS=ms24373484
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