rjheating.com

Valid Email Server
Domain Lookup › rjheating.com

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
rjheating.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-18 19:45:11 UTC · ↺ Refresh

MX Hostnames

  • d334639b.ess.barracudanetworks.com
  • d334639a.ess.barracudanetworks.com

MX Priorities

  • d334639a.ess.barracudanetworks.com: 0
  • d334639b.ess.barracudanetworks.com: 10

A / AAAA Records

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

Mail Server IPs

  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 209.222.82.252 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com

SOA Record

Raw SOA ns13.domaincontrol.com dns.jomax.net 2025081200 28800 7200 604800 3600
Primary NS (mname)
ns13.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025081200
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns14.domaincontrol.com
ns13.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 2/10
✓ 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

5 records
  • MS=ms57826934
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
  • google-site-verification=Q6sEhdh6aFYO0ezo4rTNzd4g11Z3DYWGHKFuKYwAVyM
  • NETORGFT11586619.onmicrosoft.com
  • MS=ms46300619
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