Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jb.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 19:58:05 UTC · ↺ Refresh
MX Hostnames
- smtp.secureserver.net
- mailstore1.secureserver.net
MX Priorities
- mailstore1.secureserver.net: 10
- smtp.secureserver.net: 0
A / AAAA Records
- 104.21.16.152 (no PTR)
- 172.67.213.168 (no PTR)
- 2606:4700:3031::ac43:d5a8 (no PTR)
- 2606:4700:3031::6815:1098 (no PTR)
Mail Server IPs
- 216.69.141.78 ↩ osplibsmtp01-v02.prod.phx3.secureserver.net
- 216.69.141.162 ↩ osplibsmtp02-v02.prod.phx3.secureserver.net
- 216.69.141.114 ↩ osplibsmtp03-v02.prod.phx3.secureserver.net
- 216.69.141.113 ↩ osplibsmtp03-v01.prod.phx3.secureserver.net
- 216.69.141.84 ↩ osplibsmtp02-v01.prod.phx3.secureserver.net
- 216.69.141.71 ↩ osplibsmtp01-v01.prod.phx3.secureserver.net
SOA Record
Raw SOA
carmelo.ns.cloudflare.com dns.cloudflare.com 2397167902 10000 2400 604800 1800
Primary NS (mname)
carmelo.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397167902
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
carmelo.ns.cloudflare.com
hattie.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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- emktownership=t9InZewT/Y4SI
- google-site-verification=5aq0HiJrBL6sfE7L-fTZ7kiC2aMzMmR0l0DILu-oCwc
- SPFv=spf1 include:secureserver.net -all
- D5043340
- e75fc16ac193493297ec8bf5192abc3e
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