Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
whistleexpress.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 21:59:41 UTC · ↺ Refresh
MX Hostnames
- d286600b.ess.barracudanetworks.com
- d286600a.ess.barracudanetworks.com
MX Priorities
- d286600a.ess.barracudanetworks.com: 0
- d286600b.ess.barracudanetworks.com: 10
A / AAAA Records
- 15.197.225.128 ↩ aec037177372cc6cd.awsglobalaccelerator.com
- 3.33.251.168 ↩ aec037177372cc6cd.awsglobalaccelerator.com
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns23.domaincontrol.com dns.jomax.net 2026031701 28800 7200 604800 600
Primary NS (mname)
ns23.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031701
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns23.domaincontrol.com
ns24.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spf.constantcontact.com include:mail.zendesk.com include:docebosaas.com include:45173497.spf04.hubspotemail.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- google-gws-recovery-domain-verification=66594591
- apple-domain-verification=Z9hPA-JNQD6-7q1iBQbjFnjXkjuR8ezj-RJRK8QgBkc
- MS=ms21782095
- google-site-verification=Nmlz0soN8OMSXGzx2Vnp_HmAHpfxBW2ktglVnLw_ds4
- google-site-verification=MrEFuQsi01e6LFlKEMqEdysbKDq5Yfqzz2yqb26XiHE
- stripe-verification=a4740a72561a8cfd764563bbd8a27dde44fc4972e28ea654b01cc0a0314f1c58
- twilio-domain-verification=f1c9791ca1444c2e4f5912afc8269654
- teamviewer-sso-verification=4c316ffd4ad94ca6830ef51c6aa7fbe5
- SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spf.constantcontact.com include:mail.zendesk.com include:docebosaas.com include:45173497.spf04.hubspotemail.net -all
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