Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uncommoncolumbus.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 05:18:52 UTC · ↺ Refresh
MX Hostnames
- d322503a.ess.barracudanetworks.com
- d322503b.ess.barracudanetworks.com
- uncommoncolumbus-com.mail.protection.outlook.com
MX Priorities
- d322503b.ess.barracudanetworks.com: 96
- uncommoncolumbus-com.mail.protection.outlook.com: 0
- d322503a.ess.barracudanetworks.com: 95
A / AAAA Records
- 72.52.251.190
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
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f805::1
SOA Record
Raw SOA
ns29.domaincontrol.com dns.jomax.net 2025100200 28800 7200 604800 600
Primary NS (mname)
ns29.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025100200
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns30.domaincontrol.com
ns29.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=5; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only
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
4 records- knowbe4-site-verification=3791a67278e801961c80cda25c0d10e6
- SPFv=spf1 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
- facebook-domain-verification=otwfacpt4qas9xfnm1ufcg4wdtp48z
- apple-domain-verification=BH4uGySDgjVf1k1f
Full email verification for uncommoncolumbus.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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