hdb.ca

Valid Email Server
Domain Lookup › hdb.ca

Domain Overview

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

Checked via [email protected] · 2026-03-19 07:21:56 UTC · ↺ Refresh

MX Hostnames

  • hdb-ca.mail.protection.outlook.com

MX Priorities

  • hdb-ca.mail.protection.outlook.com: 0

A / AAAA Records

  • 149.56.159.7 ↩ revweb5.web-dns1.com

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::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.web-dns1.com sysadmin-internal.whc.ca 2025030501 3600 1800 1209600 86400
Primary NS (mname)
ns1.web-dns1.com
Admin Email (rname)
sysadmin-internal@whc.ca
Serial
2025030501
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.web-dns1.com
ns2.web-dns1.com

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:174.142.221.53 +ip4:184.107.100.53 +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

✓ 2 found
selector1._domainkey
selector2._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

3 records
  • X3A9zbJN
  • SPFv=spf1 +a +mx +ip4:174.142.221.53 +ip4:184.107.100.53 +include:spf.protection.outlook.com -all
  • MS=ms82213588
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