4thsource.com

No Valid Email Server
Domain Lookup › 4thsource.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
4thsource.com
No
None
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 21:06:15 UTC · ↺ Refresh

MX Hostnames

No MX records found.

MX Priorities

No priority data.

A / AAAA Records

  • 104.21.3.5 (no PTR)
  • 172.67.129.250 (no PTR)
  • 2606:4700:3032::6815:305 (no PTR)
  • 2606:4700:3035::ac43:81fa (no PTR)

Mail Server IPs

No IPs resolved.

SOA Record

Raw SOA austin.ns.cloudflare.com dns.cloudflare.com 2400520184 10000 2400 604800 1800
Primary NS (mname)
austin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400520184
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

vivienne.ns.cloudflare.com
austin.ns.cloudflare.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

2 records
  • google-site-verification=rHc-mEJMSsS8eZjE79QYzOhBOxzpvo0Rii4cknVVZdw
  • google-site-verification=xp4I1fnJeH6Oa4wnsdfgEKL4U88djdwDtiKldR0m6_c
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