Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
mmx.com.br
No
None
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-06 14:00:39 UTC · ↺ Refresh
MX Hostnames
MX Priorities
- : 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
a.auto.dns.br hostmaster.registro.br 2026096560 1800 900 604800 900
Primary NS (mname)
a.auto.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026096560
Refresh
1800s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
b.auto.dns.br
a.auto.dns.br
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
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