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DNSBL checker

Domain / IP Spam List Check (DNSBL)


This tool allows you to quickly perform an IP and domain spam check, detect whether an address is listed in DNSBL blacklists, and evaluate the reputation of mail servers. It analyzes spam databases, checks IPs in blacklists, domain status in spam lists, and helps you understand whether email may be landing in spam due to reputation issues. Within seconds, you get a detailed DNSBL check for your domain, website, or mail server and recommendations for removing blockings.

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Popular Questions About IP, Domain and DNSBL Checks

  • What is an IP spam database check?

    IP spam database check analyzes an IP address across international DNSBL lists used by mail providers to filter unwanted messages. If the IP is listed, emails sent from it may be blocked or marked as spam. Our tool lets you quickly check IPs in blacklists and find the reasons behind email delivery problems.

  • How does domain spam checking work?

    Domain spam checking detects whether a domain or its mail servers are listed in DNSBL databases. The tool automatically resolves the domain to an IP, checks it across spam lists, and presents results clearly. This domain spam list check helps quickly diagnose why your email may be going to spam.

  • What is DNSBL and why is it important?

    DNSBL (DNS Blacklist) is a system of blocklists used to detect IPs or domains that send spam or suspicious messages. Email providers consult these lists before delivering messages. Our tool performs a complete DNSBL check and shows whether your email infrastructure is safe and whether the domain has reputation risks.

  • Why can emails end up in spam?

    The most common reasons include a domain or IP being listed in spam databases, incorrect mail server configuration, or mass mailing without authentication. DNSBL checking helps quickly identify the issue and understand how to increase trust from mail providers.

  • How to get removed from spam lists and DNSBL?

    First, you must identify which lists contain your IP or domain. The tool shows direct links for removal from spam databases (Spamhaus, Barracuda, SpamCop, etc.). Then fix the root cause: clean the server, stop unwanted mailings, or correct mail server settings. After that, submit delisting requests to DNSBL providers.

  • Do professionals use this tool?

    Yes. IP spam list checking, DNSBL analysis, and domain reputation diagnostics are standard tasks for administrators, email specialists, marketers, and website owners. The tool suits both beginners and professionals and helps rapidly solve email delivery problems.