Blacklist Lookup: Free Online Tool to Check Email & Domain Blacklists

Blacklist Lookup

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About Blacklist Lookup

One blacklisting can sabotage your email campaigns or tank your domain's trust signals, leading to bounced messages or blocked traffic. Our Blacklist Lookup tool runs a comprehensive scan against 100+ major blacklists (like Spamhaus, Barracuda, SORBS, and UCEPROTECT) to reveal if your IP, email, or domain is flagged, plus steps to delist and prevent future issues.

Enter an email address, domain, or IP (e.g., example.com or 192.168.1.1), select scan type, and click "Check." In seconds, get a clear status report: green for clean, red for listed, with links to each blacklist's details and removal guides. It checks real-time DNS records for accuracy, helping you maintain high sender scores for marketing or transactional emails.

Why email marketers and site admins depend on it:

• Multi-Type Scans: Covers IP, domain, and email across global DNSBL databases.
• Threat Breakdown: Shows listing reasons (spam, malware, open relay) with severity levels.
• Delisting Helper: Auto-generates appeal templates for common lists.
• Historical Logs: Track changes over time for ongoing monitoring.
• Privacy Safe: No data stored; anonymous queries only.

Boost open rates, avoid filters, and keep your online presence spotless. Ideal for newsletters, e-commerce confirmations, or server setups. Run unlimited lookups anytime, completely free, no login required!