responsefire.com

Valid Email Server
Domain Lookup › responsefire.com

Domain Overview

DNS: ✓ 12h ago Checker: ✓ 12h ago
responsefire.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 09:31:19 UTC · ↺ Refresh

MX Hostnames

  • mx1c40.carrierzone.com
  • mx2c40.carrierzone.com
  • mx3c40.carrierzone.com

MX Priorities

  • mx2c40.carrierzone.com: 100
  • mx1c40.carrierzone.com: 10
  • mx3c40.carrierzone.com: 110

A / AAAA Records

  • 64.29.151.221 ↩ hostedc40.carrierzone.com

Mail Server IPs

  • 64.29.151.237 ↩ mx2c40.carrierzone.com
  • 64.29.151.236 ↩ mx1c40.carrierzone.com
  • 64.29.151.238 ↩ mx3c40.carrierzone.com

SOA Record

Raw SOA ns1.aplus.net hostmaster.aplus.net 2023061116 7200 86400 3600000 86400
Primary NS (mname)
ns1.aplus.net
Admin Email (rname)
hostmaster@aplus.net
Serial
2023061116
Refresh
7200s
Retry
86400s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns3.aplus.net
ns1.aplus.net
ns2.aplus.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spfc40.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:spfc40.carrierzone.com ~all
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