jfkheatingandcooling.com

Valid Email Server
Domain Lookup › jfkheatingandcooling.com

Domain Overview

DNS: ✓ 3d ago Checker: ✓ 3d ago
jfkheatingandcooling.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-18 19:33:11 UTC · ↺ Refresh

MX Hostnames

  • jfkheatingandcooling-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 216.239.36.21 ↩ any-in-2415.1e100.net
  • 216.239.38.21 ↩ any-in-2615.1e100.net
  • 216.239.32.21
  • 216.239.34.21
  • 2001:4860:4802:34::15
  • 2001:4860:4802:36::15
  • 2001:4860:4802:38::15
  • 2001:4860:4802:32::15

Mail Server IPs

  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns71.domaincontrol.com dns.jomax.net 2026010200 28800 7200 604800 600
Primary NS (mname)
ns71.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026010200
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns71.domaincontrol.com
ns72.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • google-site-verification=8Kl3zwHNwelk6MmbNQDl4JdER-f7iNkxLSmdE1eXp4M
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for jfkheatingandcooling.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits