gsconstruction.ca

Valid Email Server
Domain Lookup › gsconstruction.ca

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gsconstruction.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 07:28:21 UTC · ↺ Refresh

MX Hostnames

  • mx-cluster-ca01.hornetsecurity.com
  • mx-cluster-ca02.hornetsecurity.com
  • gsconstruction-ca.mail.protection.outlook.com
  • mx-cluster-ca03.hornetsecurity.com
  • mx-cluster-ca-fallback.hornetsecurity.com

MX Priorities

  • mx-cluster-ca02.hornetsecurity.com: 20
  • mx-cluster-ca03.hornetsecurity.com: 30
  • mx-cluster-ca-fallback.hornetsecurity.com: 40
  • gsconstruction-ca.mail.protection.outlook.com: 50
  • mx-cluster-ca01.hornetsecurity.com: 10

A / AAAA Records

  • 138.197.175.99

Mail Server IPs

  • 108.163.133.231 ↩ mx-cluster-ca01.hornetsecurity.com
  • 209.172.38.68 ↩ hsmx01-hz11.hornetsecurity.com
  • 94.100.132.8 ↩ mx01.hornetsecurity.com
  • 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c942::1

SOA Record

Raw SOA dorthy.ns.cloudflare.com dns.cloudflare.com 2399162594 10000 2400 604800 1800
Primary NS (mname)
dorthy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399162594
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dorthy.ns.cloudflare.com
sterling.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ 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: 392 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
  • google-site-verification=TfpJtremXJMms2G8vNTjYtiLWeTs61E83ExuWGgh1YU
  • SPFv=spf1 include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
  • apple-domain-verification=40ude3Eyzahvv0QA
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