firstbridge.co

Valid Email Server
Domain Lookup › firstbridge.co

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
firstbridge.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 08:01:07 UTC · ↺ Refresh

MX Hostnames

  • firstbridge-co.mail.protection.outlook.com

MX Priorities

  • firstbridge-co.mail.protection.outlook.com: 0

A / AAAA Records

  • 198.38.94.12 ↩ d4743.dxb1.stableserver.net

Mail Server IPs

  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.mysecurecloudhost.com servers.mysecurecloudhost.com 2026013000 3600 1800 1209600 86400
Primary NS (mname)
ns1.mysecurecloudhost.com
Admin Email (rname)
servers@mysecurecloudhost.com
Serial
2026013000
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

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

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:198.38.94.12 include:spf.mysecurecloudhost.com +a +mx +ip4:51.112.9.3 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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

2 records
  • SPFv=spf1 ip4:198.38.94.12 include:spf.mysecurecloudhost.com +a +mx +ip4:51.112.9.3 ~all
  • NETORGFT14637228.onmicrosoft.com
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