Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
clrkc.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 00:40:59 UTC · ↺ Refresh
MX Hostnames
- d250228a.ess.barracudanetworks.com
- d250228b.ess.barracudanetworks.com
MX Priorities
- d250228b.ess.barracudanetworks.com: 20
- d250228a.ess.barracudanetworks.com: 0
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns55.domaincontrol.com dns.jomax.net 2026021301 28800 7200 604800 600
Primary NS (mname)
ns55.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026021301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns55.domaincontrol.com
ns56.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:75.87.2.60 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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- SPFv=spf1 ip4:75.87.2.60 include:spf.protection.outlook.com -all
- google-site-verification=b3kFRg8E4gJPUpqDGL3udQbqoYXdsA0xK7J8orN-Sa4
- duo_sso_verification=XMhlVtj0nAZSbu3Te03Xkq4erRSlxbfvGZ5a0iqgwdjD13L7iXgDCY6I8MfrqHk1
- google-site-verification=GXYLHj3tdQHjxEy7DlLT1Tz6iPfuDnOXQE4SwPB01lU
Full email verification for clrkc.com
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