Email Blacklist Checker
Check if your email sending IP address or domain name is listed on major email blacklists (DNSBL). Prevent deliverability drops before launching your outreach.
Premier reputation database tracking spam sources and compromised hosts.
Widely used enterprise email protection database.
Community-driven real-time blocklist of active spam sources.
Database of compromised relays and dynamic address spaces.
Tracks directly reported spam servers and abusive subnets.
Clean blacklist status protects your sending domain. Pair it with live recipient validation to eliminate bounces and protect your inbox placement.
Need to verify more than one email?
Our free web tools are great for single quick checks. For cold outreach, email marketing, or database cleaning, use MailVeri Bulk.
| Feature | Blacklist Checker | MailVeri Bulk Engine |
|---|---|---|
Syntax & Domain MX Check Detects typos & non-existent domains | ||
Deep SMTP Handshake Pings recipient mail server directly without sending email | ||
Catch-All & Disposable Detection Catches temporary mailboxes & risky accept-all domains | ||
Spam Trap & Honeypot Filtering Protects domain reputation from blacklists | ||
Processing Speed High-speed distributed verification queue | 1 email / lookup | 100,000 emails / ~30 mins |
Batch File Upload Auto-detects email columns with zero setup | Up to 1,000,000 rows (CSV, XLSX, TXT) | |
Trial & Expiration No credit card required | Manual lookups only | 1,000 Free Credits • Never expire |
Why Combine DNS Audits & Bulk Verification?
Fixing SPF, DKIM, DMARC, and MX records protects your outbound domain authentication, while scrubbing your recipient list removes dead mailboxes, catch-all risks, and spam traps that trigger hard bounces and ESP account suspensions.
Keep Hard Bounce Rates Below 2%
Google Workspace, Microsoft 365, and Yahoo enforce strict sender thresholds. Verifying cold outreach and newsletter lists—including isolating catch-all domains without paying $800/100K—keeps your hard bounce rate safely below 2% and protects your sender reputation.
Up to 90% Cheaper List Hygiene
Legacy email verification tools charge $400 to $649 per 100,000 credits. MailVeri delivers 99%+ accuracy starting at $0.0002 per email ($59 per 100K / $299 per 1M non-expiring credits)—see how our rates compare against MillionVerifier, ZeroBounce & NeverBounce, DeBounce, Reoon, and EmailListVerify.
Email Blacklist & DNSBL FAQs
Read Full Blacklist Removal GuideWhat causes a domain or IP to get blacklisted?
Sending to recycled or pristine spam traps, exceeding a 2% hard bounce rate, or triggering spam complaints above 0.3% are the top triggers for Spamhaus, Barracuda, and SpamCop listings.
How do I delist my domain and prevent repeat blocks?
Pause outbound campaigns, clean your recipient list with MailVeri ($59 per 100K credits) to eliminate dead mailboxes and spam traps, verify SPF/DKIM/DMARC alignment, and submit a delisting request on the DNSBL operator's site.