johnrrobinsoninc.com

Valid Email Server
Domain Lookup › johnrrobinsoninc.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
johnrrobinsoninc.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 07:44:45 UTC · ↺ Refresh

MX Hostnames

  • mx4c38.carrierzone.com
  • mx3c38.carrierzone.com
  • mx2c38.carrierzone.com
  • mx1c38.carrierzone.com

MX Priorities

  • mx2c38.carrierzone.com: 100
  • mx3c38.carrierzone.com: 110
  • mx4c38.carrierzone.com: 120
  • mx1c38.carrierzone.com: 10

A / AAAA Records

  • 66.175.58.9 ↩ hostedc38.carrierzone.com
  • 96.126.105.123 ↩ server2.shiftmarketing.info

Mail Server IPs

  • 66.175.58.42 ↩ mx2c38.carrierzone.com
  • 66.175.58.43 ↩ mx3c38.carrierzone.com
  • 66.175.58.44 ↩ mx4c38.carrierzone.com
  • 66.175.58.41 ↩ mx1c38.carrierzone.com

SOA Record

Raw SOA dns1.earthlink.net hostmaster.earthlink.net 2024110405 86400 86400 3600000 86400
Primary NS (mname)
dns1.earthlink.net
Admin Email (rname)
hostmaster@earthlink.net
Serial
2024110405
Refresh
86400s
Retry
86400s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

dns3.earthlink.net
dns1.earthlink.net
dns2.earthlink.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spfc38.carrierzone.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

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

1 record
  • SPFv=spf1 include:spfc38.carrierzone.com ~all
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