Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rinker.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 22:43:25 UTC · ↺ Refresh
MX Hostnames
- mail.global.frontbridge.com
MX Priorities
- mail.global.frontbridge.com: 10
A / AAAA Records
- 65.246.74.237 (no PTR)
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns1.cemex.com hostmaster.cemex.com 2025021701 1800 3600 1728000 3600
Primary NS (mname)
ns1.cemex.com
Admin Email (rname)
hostmaster@cemex.com
Serial
2025021701
Refresh
1800s
Retry
3600s
Expire
1728000s
Minimum TTL
3600s
Nameservers (NS)
ns2.cemex.com
ns1.cemex.com
ns3.cemex.com
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
1 record- SPFv=spf1 -all
Full email verification for rinker.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits