Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
classibs.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-23 10:37:49 UTC · ↺ Refresh
MX Hostnames
- antispam.classibs.org
MX Priorities
- antispam.classibs.org: 5
A / AAAA Records
- 201.227.64.51 (no PTR)
Mail Server IPs
- 216.55.102.115 ↩ antispam.classibs.org
SOA Record
Raw SOA
adam.ns.cloudflare.com dns.cloudflare.com 2415388237 10000 2400 604800 1800
Primary NS (mname)
adam.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2415388237
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
adam.ns.cloudflare.com
magnolia.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a a:spf.ess.barracudanetworks.com ip4:201.227.64.52/32 ip4:190.98.128.204/32 ip4:191.98.198.188/32 ?all
📊 DNS lookups: 2/10
? Neutral (?all) — no enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 237 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a a:spf.ess.barracudanetworks.com ip4:201.227.64.52/32 ip4:190.98.128.204/32 ip4:191.98.198.188/32 ?all
- _globalsign-domain-verification=NqsDaWYI-Vv2ciIzvJYAIR1HLwiWWrNPWbyloqgL5T
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