theheatingdoctor.com

Valid Email Server
Domain Lookup › theheatingdoctor.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
theheatingdoctor.com
Yes
✓ Yes
Mailgun
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 00:37:32 UTC · ↺ Refresh

MX Hostnames

  • mxa.mailgun.org
  • mxb.mailgun.org

MX Priorities

  • mxa.mailgun.org: 10
  • mxb.mailgun.org: 10

A / AAAA Records

  • 216.239.32.21 ↩ any-in-2015.1e100.net
  • 216.239.34.21 ↩ any-in-2215.1e100.net
  • 216.239.36.21 ↩ any-in-2415.1e100.net
  • 216.239.38.21 ↩ any-in-2615.1e100.net
  • 2001:4860:4802:38::15 ↩ any-in-2001-4860-4802-38--15.1e100.net
  • 2001:4860:4802:34::15 ↩ any-in-2001-4860-4802-34--15.1e100.net
  • 2001:4860:4802:36::15 ↩ any-in-2001-4860-4802-36--15.1e100.net
  • 2001:4860:4802:32::15 ↩ any-in-2001-4860-4802-32--15.1e100.net

Mail Server IPs

  • 34.160.63.108 ↩ 108.63.160.34.bc.googleusercontent.com
  • 34.160.13.42 ↩ 42.13.160.34.bc.googleusercontent.com

SOA Record

Raw SOA ns-cloud-a1.googledomains.com cloud-dns-hostmaster.google.com 12 21600 3600 259200 300
Primary NS (mname)
ns-cloud-a1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
12
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s

Nameservers (NS)

ns-cloud-a2.googledomains.com
ns-cloud-a3.googledomains.com
ns-cloud-a4.googledomains.com
ns-cloud-a1.googledomains.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:mailgun.org ~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

2 records
  • SPFv=spf1 include:mailgun.org ~all
  • google-site-verification=_kbEIuhwIAcOkf2qos91JPbPvN8AdN-hMZN82yIt8wg
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