robertcastroconstruction.com

Valid Email Server
Domain Lookup › robertcastroconstruction.com

Domain Overview

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

Checked via [email protected] · 2026-04-01 21:30:56 UTC · ↺ Refresh

MX Hostnames

  • robertcastroconstruction-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 192.250.227.100 ↩ s3378.usc1.stableserver.net

Mail Server IPs

  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.9.17 (no PTR)
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.mysecurecloudhost.com servers.mysecurecloudhost.com 2026022312 3600 1800 1209600 86400
Primary NS (mname)
ns1.mysecurecloudhost.com
Admin Email (rname)
servers@mysecurecloudhost.com
Serial
2026022312
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns2.mysecurecloudhost.com
ns4.mysecurecloudhost.com
ns1.mysecurecloudhost.com
ns3.mysecurecloudhost.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:192.250.227.100 include:spf.mysecurecloudhost.com +a +mx +ip4:192.250.227.24 include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
default._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

1 record
  • SPFv=spf1 ip4:192.250.227.100 include:spf.mysecurecloudhost.com +a +mx +ip4:192.250.227.24 include:spf.protection.outlook.com ~all
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