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<!doctype html><html class="no-js" lang="en"><head><meta charset="utf-8"><meta http-equiv="x-ua-compatible" content="ie=edge"><meta name="wot-verification" content="c2e6d3c018445b29774e" ><meta name="google-site-verification" content="UUrWN-ztXH5yDfWBVAJKls9otr9OLjSekJW_NjeuzxU"><title>How CleanTalk Anti-Spam Works. Manuals, Questions and Answers.</title><script src="/assets/js/googtag_new.js"></script> <meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="CleanTalk Support Team is here to help you find the answers on your questions. We'll be more than happy to see how we can help out."><meta name="keywords" content="user manual, spamfirewall, anti-spam, setup manual, manual, help, faq, cleantalk" ><link href="/webpack/dist/critical.min.css?v=02_04_25" rel="stylesheet preconnect"><script src="/prettify/run_prettify.js" defer></script><script src="/tinymce/custom/prism.js" defer></script><link rel="apple-touch-icon" sizes="180x180" href="/favicons/apple-touch-icon.png"><link rel="icon" type="image/png" sizes="32x32" href="/favicons/favicon-32x32.png"><link rel="icon" type="image/png" sizes="16x16" href="/favicons/favicon-16x16.png"><link rel="manifest" href="/favicons/site.webmanifest"><link rel="mask-icon" href="/favicons/safari-pinned-tab.svg" color="#5bbad5"><meta name="msapplication-TileColor" content="#da532c"><meta name="theme-color" content="#ffffff"><script> let ct_lang = 'en'; let ipHref = '/blacklists/'; let ct_trustNumber = ''; let ct_headerHeight = 80; let ct_ip = '8.222.208.146'; const scriptPostSrc = '012532053887660339914:n8xyq2vbiic'; const googleContainerID = 'GTM-NZKWWB8'; let review_record_ip = ''; let email_domain = ""; let spam_check_record = ""; let record_type = ""; let record_found = ""; let url_lang_prefix = ''; let no_data = 'No data'; let check_bot = ''; let api_url = '/my-ip'; let ip = ''; let undedined_text = ''; let network_id = ''; let blacklisted_text = 'Blacklisted'; let notinlist_text = 'Not in list'; let js_yes = 'Yes' let thanks_text = '<p class="title-2 mb-16 article__flapper">Thank you for your feedback.</p><p>Please share this article in social media</p>'; let help_text = '<p class="title-2 mb-16">We are very sorry. How can we improve the article?</p>'; let langfaq = '' == '' ? 83 : 85; let chartmonths = ''; let chartvalues = ''; let bannerLimit = 0; let barChartData = { labels: chartmonths, datasets: [ { label: "Spam active", strokeColor: "#CC3300", pointColor: "#CC3300", data: chartvalues }, ] } </script> <link rel="preload" href="/webpack/fonts/Inter-Variable.woff2" as="font" type="font/woff2" crossorigin><script src="/webpack/dist/critical.bundle.min.js?v=20_02_25" defer></script><script src="/webpack/dist/main.bundle.min.js?v=13_02_25" defer></script><link rel="preload" href="/webpack/dist/main.min.css?v=8_04_25" as="style" onload="this.onload=null;this.rel='stylesheet'"><noscript><link rel="stylesheet" href="/webpack/dist/main.min.css?v=8_04_25"></noscript></head><body><noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-NZKWWB8" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <header class="header container--full-width sticky--top header--with-submenu" data-dc-component="header"> <div class="header__row"> <div class="logo"> <a href="/" title="cleantalk"> <svg class="logo__icon"> <use href="/assets/img/icons.svg?v27-08-24#icon-cleantalk"></use> </svg> <svg class="logo__text icon"> <use href="/webpack/dist/sprite.svg?v27-08-24#icon-cleantalk-logo"></use> </svg> </a> </div> <button type="button" class="button--reset hide-desktop google-search__button" data-dc-header-ref="lens"> <svg class="icon size-24"> <use href="/webpack/dist/sprite.svg#icon-search"></use> </svg> <span class="visually-hidden">google search trigger</span> </button> <button type="button" class="button--reset hide-desktop header__burger-button size-24" data-dc-header-ref="trigger"> <svg class="icon size-24"> <use href="/webpack/dist/sprite.svg#icon-menu"></use> </svg> <span class="visually-hidden">burger navigation</span> </button> <nav class="nav__container" data-dc-header-ref="menu"> <div class="nav__inner"> <button type="button" class="button--reset nav__close hide-desktop size-24" data-dc-header-ref="navclose"> <svg class="size-24 icon"> <use href="/webpack/dist/sprite.svg#icon-close"></use> </svg> <span class="visually-hidden">close navigation</span> </button> <ul class="nav__list " id="header-menu"> <li class="nav__item nav__item--main"> <a class="nav__link" href="/features">Features</a> </li> <li class="nav__item nav__item--dropdown nav__item--main accordion is-collapsed header-accordion" data-dc-component="accordion"> <button class="nav__link accordion__trigger-btn" type="button" data-dc-accordion-ref="trigger[]" aria-haspopup="menu" aria-expanded="false">Solutions </button> <div class="accordion__content"data-dc-accordion-ref="content"> <ul class="accordion__menu menu__container" role="menu"> <li class="menu__li-title"><h6 class="menu__title">Anti-Spam for websites</h6></li> <li><a class="menu__item" href="/wordpress-anti-spam-plugin">Anti-Spam plugin for WordPress</a></li> <li><a class="menu__item" href="/anti-spam-plugins-for-websites">Anti-Spam plugins for any CMS</a></li> <li class="menu__li-title"><h6 class="menu__title">Security for websites</h6></li> <li><a class="menu__item" href="/wordpress-security-malware-firewall">Security plugin for WordPress</a></li> <li><a class="menu__item" href="//l.cleantalk.org/website-malware-removal">Malware Removal</a></li> <li class="menu__li-title"><h6 class="menu__title">Blacklists</h6></li> <li><a class="menu__item" href="/blacklists">Blacklists Database</a></li> <li><a class="menu__item" href="/email-checker">Email Checker</a></li> <li class="menu__li-title"><h6 class="menu__title">Other services for websites</h6></li> <li><a class="menu__item" href="https://doboard.com" target="_blank">doBoard - Project management software <i class="fa fa-external-link" aria-hidden="true"></i></a></li> <li><a class="menu__item" href="/ssl-certificates/cheap-positivessl-certificate">SSL Certificates</a></li> <li><a class="menu__item" href="/uptime-monitoring">Uptime Monitoring</a></li> <script> document.addEventListener('DOMContentLoaded', function() { let currentUrl = window.location.pathname; let menuItems = document.querySelectorAll('.menu__item'); menuItems.forEach(function(item) { let menuItemUrl = item.getAttribute('href'); if (currentUrl === menuItemUrl) { item.classList.add('disabled'); item.setAttribute('rel', 'nofollow'); } }); }); </script> </ul> </div> </li> <li class="nav__item hide-desktop"> <a class="nav__link" href="/help/introduction">Getting started</a> </li> <li class="nav__item hidden"> <a class="nav__link" href="/cleantalk-anti-spam-firewall">SpamFireWall</a> </li> <li class="nav__item nav__item--main"> <a class="nav__link" href="/price-anti-spam">Pricing</a> </li> <li class="nav__item nav__item--last"> <a class="nav__link" href="/help">Help</a> </li> </ul> <ul class="nav__list nav__list--second hide-desktop"> <li class="nav__item hidden"> <a class="nav__link" href="https://cleantalk.org/blacklists">Find spam bot</a> </li> <li class="nav__item nav__item--second-order"><a class="nav__link nav__link--blue nav__link--mobile-center text--no-wrap" href="/my" rel="nofollow">Sign in</a></li> <li class="nav__item tablet-pr-16 tablet-pl-16"><a class="button button--submit button--h-40 button--side-p-16 text--no-wrap" href="/register" rel="nofollow">Create account</a></li> </ul> </div> </nav> <div class="nav__item nav__item--with-search not-inited" id="search_icon" data-dc-header-ref="search"> <div class="google-search__container"> <svg class="google-search__icon icon" id="google_search_run"> <use href="/webpack/dist/sprite.svg#icon-search"></use> </svg> <ul class="google-search" id="search_ul"> <li><div class="gcse-search" id="gcse-search" data-enableAutoComplete="false"></div> </li> </ul> <svg class="google-search__close hide-desktop size-24 icon" data-dc-header-ref="close"> <use href="/webpack/dist/sprite.svg#icon-close"></use> </svg> <button class="google-search__trigger" data-dc-header-ref="loader">Search</button> </div> </div> <ul class="nav__list nav__list--second hide-tablet"> <li class="nav__item hidden"> <a class="nav__link" href="https://cleantalk.org/blacklists">Find spam bot</a> </li> <li class="nav__item nav__item--second-order"><a class="nav__link nav__link--blue nav__link--mobile-center text--no-wrap" href="/my" rel="nofollow">Log in</a></li> <li class="nav__item tablet-pr-16 tablet-pl-16"><a class="button button--submit button--h-40 button--side-p-16 text--no-wrap" href="/register" rel="nofollow">Create account</a></li> </ul> </div> </header> <main class="main main--with-subnav" > <div class="subnav__container"> <div class="container--full-width container--mobile-scroll"> <ul class="subnav__list"> <li><a class="subnav__link" href="/help/introduction">Anti-Spam for WebSites</a></li> <li><a class="subnav__link" href="/blacklists">Spam IP/Email Database</a></li> <li><a class="subnav__link" href="/help/api-spam-check">Spam IP/Email Blacklists API</a></li> <li><a class="subnav__link" href="/my-ip/">My IP Info </a></li> </ul> </div> </div> <div class="container--full-width article"><ol class="breadcrumb__list" itemscope itemtype="https://schema.org/BreadcrumbList"><li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb__item"><a itemprop="item" href="/"><span itemprop="name">Home</span></a><meta itemprop="position" content="1"></li><li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb__item"><span itemprop="name">Help</span><meta itemprop="position" content="2"></li></ol><div class="main-grid main-grid--align-top main-grid--full-height" data-dc-component="article"><div class="main-grid__col--width-9/12 article__container" data-dc-article-ref="content"><article id="article" rel="article-1" class="article__content pb-36 tablet-pb-16"><h1 style="text-align: center;">CleanTalk Help</h1> <p> </p> <h2>Manuals, Questions and Answers</h2> <h3 id="anti-spam-service" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Anti-Spam Service" data-id="anti-spam-service"></button><a class="article__anchor-link" role="heading" href="#anti-spam-service" aria-level="3">Anti-Spam Service</a></h3> <div class="help-content__row"> <div class="help-content__right"> <ul> <li><a href="/help/premium-notice">Premium Notice is still shown in WordPress backend after payment</a></li> <li><a href="/help/faq#test">How can I test the Anti-Spam on the website?</a></li> <li><a href="/help/faq#more_spam">After the installation, I noticed in the statistics that the number of spam attacks had increased</a></li> <li><a href="/help/forbidden-please-enable-javascript">I see in logs a lot of blocked messages with reason "Forbidden. Please enable JavaScript. Spam sender name."</a></li> <li><a href="/help/jcomments-spam">Why CleanTalk Doesn't Stop Spam on JComments?</a></li> <li><a href="/help/greylist">What is the Grey List?</a></li> <li><a href="/help/wordpress-plugin-settings">WordPress: The CleanTalk Anti-Spam Plugin Settings</a></li> <li><a href="/help/deletion-from-public-page">How to delete your IP or e-mail from CleanTalk Blacklist public page?</a></li> <li><a href="/help/event-notifications">Website Event Notifications</a></li> <li><a href="/help/curl-timeout-error">CURL Timeout Error</a></li> <li><a href="/help/no-requests-in-control-panel">No Requests in Anti-Spam Log</a></li> <li><a title="I Can't Find Approved Submissions in the Backend of My Website" href="/help/i-cant-find-message">I Can't Find Approved Submissions in the Backend of My Website</a></li> <li><a href="/help/exclusion-from-anti-spam-checking">Exclusions From Anti-Spam Checking</a></li> <li><a href="/help/antispam-website-search-form">Anti-Spam for Website Search Form</a></li> <li><a title="Description of the process for sending a report about a missed spam bot or an incorrect filter" href="/help/feedback-spam">Description of the process for sending a report about a missed spam bot or an incorrect filter</a></li> <li><a title="The CleanTalk Servers IP Ranges" href="/help/cleantalk-servers-ip-addresses">The CleanTalk Servers IP Ranges</a></li> <li><a title="System Requirements for the CleanTalk Plugins" href="/help/system-requirements-for-anti-spam-and-security">System Requirements for the CleanTalk Plugins</a></li> <li><a title="Reasons Why the Tag <iframe> is Considered Suspicious" href="/help/embedded-content-iframe-tag">Reasons Why the Tag <iframe> is Considered Suspicious</a></li> <li><a title="Specifics of the CleanTalk Anti-Spam Protection and Cache Plugins on WordPress" href="/help/anti-spam-and-cache-plugins-on-wordpress-specifics">Specifics of the CleanTalk Anti-Spam Protection and Cache Plugins on WordPress</a><br /> </li> </ul> <h3 id="anti-spam-package-payments" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Anti-Spam Package And Payments" data-id="anti-spam-package-payments"></button><a class="article__anchor-link" role="heading" href="#anti-spam-package-payments" aria-level="3">Anti-Spam Package And Payments</a></h3> <ul class="help-content__list"> <li><a href="/help/antispam-payment">Description of the payment process for CleanTalk Anti-Spam license</a></li> <li><a href="/help/faq#need_more">Can I have a more powerful package?</a></li> <li><a href="/help/faq#double_connect">I want to connect two resources to the service. Do I have to register two accounts, or I can use the same key?</a></li> <li><a href="/help/extra-package">CleanTalk Extra Package</a></li> <li><a href="/help/faq#not_connected">My website status is "Not connected"!</a></li> <li><a href="/help/licence-for-multisite-environment-wpmu">What type of license use for WordPress Multisite environment (WPMU)?</a></li> <li><a title="The CleanTalk Affiliate Program" href="/help/affiliate-program">Does CleanTalk have an Affiliate Program?</a></li> <li><a href="help/how-to-pay-by-invoice">Payments by Bank Transfer (By Invoice)</a></li> <li><a href="help/how-to-get-invoice">How can I have an invoice</a></li> <li><a href="/price-hosting-anti-spam">Hosting Anti-Spam Package</a></li> </ul> <p> </p> <h3 id="account-management" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Account Management" data-id="account-management"></button><a class="article__anchor-link" role="heading" href="#account-management" aria-level="3">Account Management</a></h3> <ul class="help-content__list"> <li><a href="/help/change-access-key">How to change Access key for Anti-Spam and Security</a></li> <li><a href="/help/change-email">How to change e-mail</a></li> <li><a href="/help/add-website">How to add a website in your CleanTalk profile</a></li> <li><a href="/help/access-to-dashboard">How to restore access to my Dashboard?</a></li> <li><a href="/help/faq#feedback_spam">How do I report a missed spam bot or incorrect filter?</a></li> <li><a href="/help/i-cant-find-message">I can't find the message in the control Panel of the website</a></li> <li><a href="/help/i-want-to-block-ip">I want to block IP/email/IP network</a></li> <li><a href="/help/store-the-content-of-messages">I don't want to store the content of messages in the logs</a></li> <li><a href="/help/change-service-url">How to move service to another website?</a></li> <li><a title="How to Use Your Personal Lists?" href="/help/blacklist-usage">How to Use Your Personal Lists?</a></li> <li><a href="/help/stop-word">Stop-Word Feature</a></li> <li><a href="/help/sfw-blocks-networks">SpamFireWall - Subnet Blocking</a></li> <li><a href="/help/delegation">Website delegation to other users</a></li> <li><a href="/help/delegation#add_email">How can I add an additional email address to receive notifications and newsletters?</a></li> <li><a href="/help/anti-spam-log">How to use Anti-Spam Log</a></li> <li><a href="/help/spam-comment-management">Spam Comment Management</a></li> <li><a href="/help/overwrite-message-for-blocked-visitors">How to overwrite message for blocked visitors</a></li> <li><a title="Link to notification settings" href="/help/new-comment-email-notify">How to set up e-mail notifications of new comments for any group of users in WordPress?</a></li> <li><a title="Forwarding requests to email" href="/help/forwarding">Forwarding requests to the email</a></li> <li><a title="Log of visited URLs" href="/help/anti-spam-log#stored_URLs">Log of visited URLs</a></li> </ul> <p> </p> <h3 id="other-questions" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Other Questions" data-id="other-questions"></button><a class="article__anchor-link" role="heading" href="#other-questions" aria-level="3">Other Questions</a></h3> <ul class="help-content__list"> <li><a title="Is CleanTalk Compatible with CloudFlare?" href="/help/cleantalk-cloudflare">Is CleanTalk Compatible with CloudFlare?</a></li> <li><a title="Using CleanTalk Anti-Spam with website proxy" href="/help/using-proxy">Using CleanTalk Anti-Spam with website proxy</a></li> <li><a title="CleanTalk vs Akismet" href="/help/cleantalk-vs-akismet">Is CleanTalk Better than Akismet?</a></li> </ul> <h3 class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"> </h3> <h3 id="anti-spam-api" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Anti-Spam API" data-id="anti-spam-api"></button><a class="article__anchor-link" role="heading" href="#anti-spam-api" aria-level="3">Anti-Spam API</a></h3> <ul class="help-content__list"> <li><a title="Method check_newuser()" href="/help/api-check-newuser">check_newuser() - Method check_newuser() should be used to check registrations for spam.</a></li> <li><a title="Method check_message()" href="/help/api-check-message">check_message() - Method check_message() should be used to check comments and contact form submissions for spam.</a></li> <li><a title="Method send_feedback()" href="/help/api-send-feedback">send_feedback() - Method send_feedback() should be used only for moderator feedback. It doesn't check spam. It sends back the result of manual moderation.</a></li> <li><a title="Additional Libraries" href="/help/builtin-libs">Bult-in Libraries.</a></li> <li><a title="API main help" href="/help/api-main">API common help.</a></li> <li><a title="API without Lib" href="/help/api-without">Using the Service Without CleanTalk's PHP Library.</a></li> </ul> <p> </p> <h3 id="dbase-api" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Database (Blacklists) API" data-id="dbase-api"></button><a class="article__anchor-link" role="heading" href="#dbase-api" aria-level="3">Database (Blacklists) API</a></h3> <ul class="help-content__list"> <li><a title="Method spam_check()" href="/help/api-spam-check">spam_check() - Method's response is information about the existence of IP and e-mail records in our database.</a></li> <li><a title="Method backlinks_check()" href="/help/api-backlinks-check">backlinks_check() - This method allows you to identify if a domain was used in other spam messages.</a></li> </ul> <p> </p> <h3 id="other-apis" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Other APIs" data-id="other-apis"></button><a class="article__anchor-link" role="heading" href="#other-apis" aria-level="3">Other APIs</a></h3> <ul class="help-content__list"> <li><a title="Method ip_info()" href="/help/api-ip-info-country-code">ip_info() - The API "ip_info()" returns a 2-letter country code (US, UK, CN and etc) for an IP address.</a></li> </ul> <p> </p> <h3 id="dashboard-api" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Dashboard API" data-id="dashboard-api"></button><a class="article__anchor-link" role="heading" href="#dashboard-api" aria-level="3">Dashboard API</a></h3> <ul class="help-content__list"> <li><a title="Personal Lists" href="help/api-private-list">Personal Lists - API for managing Personal Lists.</a></li> </ul> <p> </p> <h3 id="security-service" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="Security Service" data-id="security-service"></button><a class="article__anchor-link" role="heading" href="#security-service" aria-level="3">Security Service</a></h3> <ul> <li><a href="/help/security-faq">Security service FAQ</a></li> <li><a href="/help/security-log">How to use Security Log</a></li> <li><a href="/help/security-firewall">Security Firewall</a></li> <li><a href="/help/security-malware-scanner">Malware Scanner</a></li> <li><a href="/help/security-quarantine">Quarantine Option</a></li> </ul> <p> </p> <div class="help-ways"> <h3 id="how-to-get-help" class="title--with-anchor" tabindex="-1" role="presentation" data-title="Copy link to this section"><button class="article__anchor" type="button" aria-label="How to get help?" data-id="how-to-get-help"></button><a class="article__anchor-link" role="heading" href="#how-to-get-help" aria-level="3">How to get help?</a></h3> <ul class="help-ways__list"> <li class="help-ways__item --1"> <div class="help-ways__item__title"><a href="/my/support">Technical support</a></div> <div class="help-ways__item__content"> <div class="help-ways__item__title">Create a support ticket</div> </div> </li> </ul> <p> </p> </div> </div> </div> <p> </p> <p> </p> <div class="row"> <div class="col-xs-12 col-sm-5 col-sm-offset-1 col-md-4 col-md-offset-2 text-center" style="margin-bottom: 1em; text-align: left;"><a class="btn btn-lg btn-primary col-xs-12" href="/register">Create an account</a></div> <div class="col-xs-12 col-sm-5 col-md-4 text-center" style="text-align: left;"><a class="btn btn-lg btn-primary col-xs-12" href="/my">Your CleanTalk Dashboard</a></div> </div></article><div class="article__content pt-70 tablet-pt-28 mb-32 pb-100 tablet-pb-28"><h3>A new articles</h3><ul><li><div><a href="/help/team">Team</a></div></li><li><div><a href="/help/billing-pay-as-you-go">Billing Pay-As-You-Go in CleanTalk</a></div></li><li><div><a href="/help/faq-payment">CleanTalk Payment FAQ</a></div></li><li><div><a href="/help/antispam-payment">How to pay for CleanTalk Anti-Spam service</a></div></li><li><div><a href="/help/api-host-info">Information about the site by domain. 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