Verificador de Risco de Caixa de Entrada Grátis
Verifique se seus e-mails têm probabilidade de chegar à caixa de entrada, promoções ou spam — grátis. Analise sinais de MX, SPF, DKIM, DMARC e blacklists.
14 Deliverability Signals We Check
Most tools check 1-2 signals. We analyze 14 — including signals no other free tool checks.
Security Gateway
Detects Proofpoint, Mimecast, Cisco, Barracuda, and 20+ email security gateways that actively filter inbound email.
DMARC Policy Depth
Distinguishes p=none (monitoring) from p=quarantine (spam) and p=reject (block). Not just "has DMARC."
SPF Strictness
Differentiates -all (hard fail) from ~all (soft fail). A domain with -all rejects unauthorized senders outright.
DKIM Verification
Auto-scans 50 common selectors to verify if DKIM signing is active — completing the authentication chain.
BIMI Record
Brand logos in the inbox require DMARC p=reject + a VMC certificate — the highest tier of email security investment.
MTA-STS
Strict Transport Security for email — enforces encrypted delivery. A strong signal of enterprise-grade mail infrastructure.
TLS Reporting
TLSRPT records indicate the domain actively monitors TLS delivery failures. Another enterprise security signal.
Blacklist Status
Checks MX server IPs against major DNS blacklists. Clean MX = reputable infrastructure.
Provider Detection
Identifies Google Workspace, Microsoft 365, Zoho, ProtonMail, and 25+ email providers from MX records.
Sending Infrastructure
Parses SPF includes to detect SendGrid, Mailgun, Amazon SES, HubSpot, and 30+ sending platforms.
DMARC Reporting
Checks if the domain monitors authentication failures with aggregate (rua) and forensic (ruf) reports.
SPF Lookup Health
SPF has a 10-lookup limit. Domains nearing the limit may have delivery issues — we flag this.
Domain Existence Check
Verifies the domain is actually registered in DNS before running checks. Unregistered or expired domains are flagged immediately — emails to them will bounce.
Registrar Parking Detection
Detects default MX records from GoDaddy, Namecheap, Hostinger, and 15+ registrars. These are placeholder records — not real mailboxes.
How It Works
Enter Domain(s)
Type a single domain or paste up to 50 for bulk analysis. No sign-up needed.
14 Checks
We run MX, SPF, DKIM, DMARC, BIMI, MTA-STS, TLSRPT, and blacklist checks in parallel.
Get Risk Score
See a weighted difficulty score, provider detection, and actionable recommendations.
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