h3c.org

Valid Email Server
Domain Lookup › h3c.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
h3c.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 21:27:37 UTC · ↺ Refresh

MX Hostnames

  • h3c-org.mail.protection.outlook.com

MX Priorities

  • h3c-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 57.128.68.29 (no PTR)

Mail Server IPs

  • 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com

SOA Record

Raw SOA dns104.ovh.net tech.ovh.net 2025121900 86400 3600 3600000 60
Primary NS (mname)
dns104.ovh.net
Admin Email (rname)
tech@ovh.net
Serial
2025121900
Refresh
86400s
Retry
3600s
Expire
3600000s
Minimum TTL
60s

Nameservers (NS)

ns104.ovh.net
dns104.ovh.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -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

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

5 records
  • MS=ms36021858
  • 1|www.h3c.org
  • f0OYErD8Vp/Qii9N7FflhQ0ye3iOxJngQ7ich+jKwPxtXaw1jxtJEVE17Fy77IpgIqDpX1C6GwM62C1E4JFifA==
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • apple-domain-verification=Lod96vQC2DTQUpMF
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