{"id":24534,"date":"2025-10-17T10:19:21","date_gmt":"2025-10-17T10:19:21","guid":{"rendered":"https:\/\/1-grid.com\/knowledge\/what-is-ip-blacklisting\/"},"modified":"2025-10-17T10:19:23","modified_gmt":"2025-10-17T10:19:23","slug":"what-is-ip-blacklisting","status":"publish","type":"ht_kb","link":"https:\/\/1grid.co.za\/knowledge\/what-is-ip-blacklisting\/","title":{"rendered":"Everything You Need to Know About IP Blacklisting"},"content":{"rendered":"\n<p>If you\u2019ve suddenly noticed that your <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/?s=email&amp;ht-kb-search=1&amp;lang=\" target=\"_blank\" rel=\"noreferrer noopener\">emails aren\u2019t being delivered<\/a> <\/strong>or your website access is blocked, your <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/everything-you-need-to-know-about-an-ip-address\/\">IP address <\/a>might be blacklisted but it&#8217;s not permanent.<\/strong>\u00a0<\/p>\n\n\n\n<p>IP blacklisting can seem alarming, but there\u2019s no need to worry because it\u2019s fixable!\u00a0<br>By understanding the cause, following delisting steps, and keeping your systems clean and secure, you can restore your email or website access quickly.\u00a0<\/p>\n\n\n\n<p>This guide will explain what IP blacklisting means, why it happens, and most importantly, how to fix and prevent it so you can get back online confidently.\u00a0<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"600\" src=\"https:\/\/1grid.co.za\/knowledge\/wp-content\/uploads\/2022\/02\/1-grid-Images-for-KB-Articles-1000-x-600-px-56.png\" alt=\"\" class=\"wp-image-33836\"\/><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-ht-block-toc is-style-rounded htoc htoc--position-wide toc-list-style-plain\" data-htoc-state=\"expanded\"><span class=\"htoc__title\"><span class=\"ht_toc_title\">Table of Contents<\/span><span class=\"htoc__toggle\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\"><g fill=\"#444\"><path d=\"M15 7H1c-.6 0-1 .4-1 1s.4 1 1 1h14c.6 0 1-.4 1-1s-.4-1-1-1z\"><\/path><path d=\"M15 1H1c-.6 0-1 .4-1 1s.4 1 1 1h14c.6 0 1-.4 1-1s-.4-1-1-1zM15 13H1c-.6 0-1 .4-1 1s.4 1 1 1h14c.6 0 1-.4 1-1s-.4-1-1-1z\"><\/path><\/g><\/svg><\/span><\/span><div class=\"htoc__itemswrap\"><ul class=\"ht_toc_list\"><li class=\"\"><a href=\"#htoc-what-is-ip-blacklisting\">What Is IP Blacklisting?\u00a0<\/a><\/li><li class=\"\"><a href=\"#htoc-why-is-my-ip-blacklisted\">Why Is My IP Blacklisted?&nbsp;<\/a><ul class=\"ht_toc_child_list\"><li class=\"\"><a href=\"#htoc-1-spam-or-suspicious-email-activity\">1. Spam or Suspicious Email Activity&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-2-malware-or-compromised-accounts\">2. Malware or Compromised Accounts&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-3-too-many-failed-login-attempts\">3. Too Many Failed Login Attempts&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-4-suspicious-or-unusual-network-activity\">4. Suspicious or Unusual Network Activity&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-5-shared-network-or-public-connection-issues\">5. Shared Network or Public Connection Issues&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-6-false-positives-accidental-blocks\">6. False Positives (Accidental Blocks)&nbsp;<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#htoc-who-is-blacklisting-my-ip\">Who Is Blacklisting My IP?&nbsp;<\/a><ul class=\"ht_toc_child_list\"><li class=\"\"><a href=\"#htoc-spamhaus1\">Spamhaus\u00a0<\/a><\/li><li class=\"\"><a href=\"#htoc-spamcop1\">SpamCop\u00a0<\/a><\/li><li class=\"\"><a href=\"#htoc-barracuda1\">Barracuda\u00a0<\/a><\/li><li class=\"\"><a href=\"#htoc-surbl1\">SURBL\u00a0<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#htoc-how-to-check-if-your-ip-is-blacklisted\">How to Check If Your IP Is Blacklisted&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-how-to-remove-your-ip-from-a-blacklist\">How to Remove Your IP from a Blacklist&nbsp;<\/a><ul class=\"ht_toc_child_list\"><li class=\"\"><a href=\"#htoc-1-identify-the-cause\">1: Identify the Cause\u00a0<\/a><\/li><li class=\"\"><a href=\"#htoc-2-follow-the-blacklist-s-delisting-procedure\">2: Follow the Blacklist\u2019s Delisting Procedure\u00a0<\/a><\/li><li class=\"\"><a href=\"#htoc-3-wait-for-propagation\">3: Wait for Propagation\u00a0<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#htoc-how-to-prevent-future-blocks\">How to Prevent Future Blocks&nbsp;<\/a><ul class=\"ht_toc_child_list\"><li class=\"\"><a href=\"#htoc-anti-virus-software\">Anti-Virus Software for Different OS<\/a><ul class=\"ht_toc_child_list\"><li class=\"\"><a href=\"#htoc-windows\">Windows&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-mac\">Mac&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-linux\">Linux&nbsp;<\/a><\/li><\/ul><\/li><\/ul><\/li><li class=\"\"><a href=\"#htoc-tips-to-reduce-flags-and-maintain-reputation\">Tips to Reduce Flags and Maintain Reputation&nbsp;<\/a><ul class=\"ht_toc_child_list\"><li class=\"\"><a href=\"#htoc-keep-excellent-email-hygiene\">Keep Excellent Email Hygiene&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-strengthen-your-security-measures\">Strengthen your Security Measures&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-regularly-check-your-blacklist-status\">Regularly Check your Blacklist Status&nbsp;<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#htoc-when-to-contact-1-grid-support\">When to Contact 1-grid Support&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-faqs\">FAQs&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-\">Additional Resources\u00a0<\/a><\/li><\/ul><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-what-is-ip-blacklisting\"><strong>What Is IP Blacklisting?<\/strong>\u00a0<\/h2>\n\n\n\n<p>An <strong>IP blacklist<\/strong> is a database used by Internet Service Providers (ISPs), email servers, and spam filters to identify and block<strong> <a href=\"https:\/\/1grid.co.za\/knowledge\/everything-you-need-to-know-about-an-ip-address\/\">IP addresses<\/a><\/strong> as a result of suspected <a href=\"https:\/\/1grid.co.za\/knowledge\/email-security-avoid-being-labeled-as-a-spammer\/\"><strong>sending <\/strong><\/a>of<a href=\"https:\/\/1grid.co.za\/knowledge\/email-security-avoid-being-labeled-as-a-spammer\/\"><strong> spam<\/strong><\/a>, phishing attempts, or malicious traffic.\u00a0<\/p>\n\n\n\n<p>When your IP address appears on one of these lists, your emails might <a href=\"https:\/\/1grid.co.za\/knowledge\/email-error-messages-what-do-they-mean\/\"><strong>bounce back<\/strong><\/a>, or your website could become temporarily unreachable.\u00a0<\/p>\n\n\n\n<p><strong>TIP:<\/strong> Blacklisting doesn\u2019t always mean you\u2019ve done something wrong, so don\u2019t panic! Sometimes, <strong><a href=\"https:\/\/1grid.co.za\/hosting\/web-hosting\/\">shared servers<\/a><\/strong> or <strong>infected devices<\/strong> on the same network can certainly cause your IP to be flagged.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-why-is-my-ip-blacklisted\"><strong>Why Is My IP Blacklisted?<\/strong>&nbsp;<\/h2>\n\n\n\n<p>This happens when an address is associated with suspicious activity or spam-like behaviour.\u00a0<\/p>\n\n\n\n<p>\u00a0Some common causes include:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-sending-bulk-or-unsolicited-emails\">Sending bulk or unsolicited emails.\u00a0<\/li>\n\n\n\n<li id=\"htoc-using-infected-devices-or-compromised-email-accounts\">Using infected devices or compromised email accounts.\u00a0<\/li>\n\n\n\n<li id=\"htoc-sharing-a-server-with-users-who-send-spam-common-in-shared-hosting\">Sharing a server with users who send <a href=\"https:\/\/1grid.co.za\/knowledge\/email-security-avoid-being-labeled-as-a-spammer\/\"><strong>spam<\/strong><\/a> (common in shared hosting).\u00a0<\/li>\n\n\n\n<li id=\"htoc-poor-email-list-hygiene-many-invalid-recipients\">Poor email list hygiene (<a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-resolve-mailchannels-error-550-too-many-invalid-recipients\/\"><strong>many invalid recipients<\/strong><\/a>).\u00a0<\/li>\n\n\n\n<li id=\"htoc-open-relays-or-insecure-web-forms\">Open relays or insecure web forms.\u00a0<\/li>\n<\/ul>\n\n\n\n<p>Additionally, common reasons your IP may be blacklisted, and what you can do about them.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-1-spam-or-suspicious-email-activity\"><strong>1. Spam or Suspicious Email Activity<\/strong>&nbsp;<\/h3>\n\n\n\n<p>One of the main reasons an IP address becomes blacklisted is because it\u2019s flagged for sending large volumes of emails that appear suspicious or spam-like. This doesn\u2019t always mean you sent spam intentionally because sometimes, a <strong>compromised mailbox<\/strong> or outdated settings can cause the issue.\u00a0<\/p>\n\n\n\n<p><strong><em>Common causes include:<\/em><\/strong>&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-high-volume-sending-sending-too-many-emails-in-a-short-time-can-trigger-spam-filters\"><strong>High-volume sending:<\/strong> Sending too many emails in a short time can trigger spam filters.\u00a0<\/li>\n\n\n\n<li id=\"htoc-email-content-issues-using-spam-trigger-words-suspicious-links-or-misleading-subject-lines-can-cause-your-ip-to-be-flagged\"><strong>Email content issues:<\/strong> Using <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/email-security-avoid-being-labeled-as-a-spammer\/\" target=\"_blank\" rel=\"noreferrer noopener\">spam<\/a> <\/strong>trigger words, suspicious links, or misleading subject lines can cause your IP to be flagged.\u00a0<\/li>\n\n\n\n<li id=\"htoc-missing-authentication-without-proper-spf-dkim-and-dmarc-records-your-emails-may-look-unverified-making-them-more-likely-to-be-blocked-or-spoofed\"><strong>Missing authentication:<\/strong> Without proper <a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-enable-dkim-and-spf-on-your-mail-domain\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SPF<\/strong><\/a><strong>, <\/strong><a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-enable-dkim-and-spf-on-your-mail-domain\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>DKIM<\/strong><\/a><strong>, and <\/strong><a href=\"https:\/\/1grid.co.za\/knowledge\/cpanel-how-to-add-dmarc-record\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>DMARC<\/strong><\/a><strong> <\/strong><a href=\"https:\/\/1grid.co.za\/knowledge\/understanding-dns-records-and-how-to-check-these\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>records<\/strong><\/a>, your emails may look unverified, making them more likely to be blocked or spoofed.\u00a0<\/li>\n<\/ul>\n\n\n\n<p><strong>IMPORTANT: <\/strong>Make sure your email domain is properly authenticated before sending.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-2-malware-or-compromised-accounts\"><strong>2. Malware or Compromised Accounts<\/strong>&nbsp;<\/h3>\n\n\n\n<p>If malware, phishing software, or spam bots are detected on your hosting account, website, or local device, your IP may automatically be blacklisted to protect others on the network but this is certainly not permanent as long as you review and fix.\u00a0<\/p>\n\n\n\n<p><strong><em>Common triggers:<\/em><\/strong>&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-sending-or-forwarding-viruses-or-malicious-attachments\">Sending or forwarding viruses or malicious attachments.\u00a0<\/li>\n\n\n\n<li id=\"htoc-hosting-or-linking-to-phishing-content\">Hosting or linking to phishing content.\u00a0<\/li>\n\n\n\n<li id=\"htoc-using-outdated-or-vulnerable-plugins-or-cms-software\">Using outdated or vulnerable plugins or CMS software.\u00a0<\/li>\n<\/ul>\n\n\n\n<p><strong>TIP: <\/strong>Run a <strong>full antivirus scan<\/strong> on your device and website. Keep your operating system and plugins up to date and use strong passwords to prevent automated logins by bots.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-3-too-many-failed-login-attempts\"><strong>3. Too Many Failed Login Attempts<\/strong>&nbsp;<\/h3>\n\n\n\n<p>When someone repeatedly enters incorrect login credentials, whether intentional or not, the system interprets it as a potential attack, so your IP may be <strong>temporarily blacklisted<\/strong> to protect your account.\u00a0<\/p>\n\n\n\n<p><strong><em>This can happen when:<\/em><\/strong>&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-you-ve-entered-the-wrong-password-multiple-times\">You\u2019ve entered the wrong password multiple times.\u00a0<\/li>\n\n\n\n<li id=\"htoc-a-hacker-is-attempting-to-gain-access-through-brute-force-attacks\">A hacker is attempting to gain access through brute-force attacks.\u00a0<\/li>\n\n\n\n<li id=\"htoc-you-re-logging-in-from-multiple-devices-or-unknown-locations\">You\u2019re logging in from multiple devices or unknown locations.\u00a0<\/li>\n<\/ul>\n\n\n\n<p><strong>TIP: <\/strong>If your IP is blocked, <strong>wait about two hours<\/strong> before trying again, and in the meantime, <strong>reset your password<\/strong>.&nbsp;&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-4-suspicious-or-unusual-network-activity\"><strong>4. Suspicious or Unusual Network Activity<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Monitoring systems constantly track incoming and outgoing connections but if they detect <strong>sudden traffic spikes<\/strong> or unusual requests from your IP that could affect server performance, it means that the IP may be temporarily blocked to prevent wider disruption.\u00a0<\/p>\n\n\n\n<p>Possible causes due to:\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-multiple-simultaneous-logins\">Multiple simultaneous logins.\u00a0<\/li>\n\n\n\n<li id=\"htoc-high-api-or-ftp-activity\">High API or FTP activity.\u00a0<\/li>\n\n\n\n<li id=\"htoc-automated-scripts-or-bots-running-in-the-background\">Automated scripts or bots running in the background.\u00a0<\/li>\n<\/ul>\n\n\n\n<p><strong>TIP:<\/strong> Always log out when you\u2019re done managing your account and avoid running multiple FTP connections or backup processes at once.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-5-shared-network-or-public-connection-issues\"><strong>5. Shared Network or Public Connection Issues<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Sometimes, your IP can be blacklisted because of another user on the same network, especially if you\u2019re using <strong>public Wi-Fi or shared business internet<\/strong>.&nbsp;<\/p>\n\n\n\n<p><strong>TIP:<\/strong> Avoid logging in from public hotspots or unsecured connections. If you\u2019re working remotely, use a <strong>trusted VPN<\/strong> or your <strong>home network<\/strong> instead to reduce the risk of shared IP flags.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-6-false-positives-accidental-blocks\"><strong>6. False Positives (Accidental Blocks)<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Occasionally, your IP may be blocked by mistake, especially if the traffic pattern resembles an attack. This is rare, but when it happens, it can be fixed quickly.&nbsp;<\/p>\n\n\n\n<p><strong>TIP:<\/strong> Try again in two hours, and if you\u2019re still blocked, consider whitelisting options with your IP address at hand.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-who-is-blacklisting-my-ip\"><strong>Who Is Blacklisting My IP?<\/strong>&nbsp;<\/h2>\n\n\n\n<p>There are many reputable organisations (called <a href=\"https:\/\/www.google.com\/search?q=DNS-based+Blacklists&amp;rlz=1C1GCEU_enZA1059ZA1063&amp;oq=DNS-based+Blacklists&amp;gs_lcrp=EgZjaHJvbWUyBggAEEUYOdIBCDkyMmowajE1qAIIsAIB8QULYb83JOKbGPEFC2G_NyTimxg&amp;sourceid=chrome&amp;ie=UTF-8\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>DNS-based Blacklists<\/strong><\/a>, or DNSBLs) that track suspicious or malicious IP behaviour, so it&#8217;s important to keep an eye out for these.\u00a0<\/p>\n\n\n\n<p>Common Blacklist Providers include:&nbsp;<\/p>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-spamhaus1\"><a href=\"https:\/\/www.spamhaus.org\/blocklists\/domain-blocklist\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Spamhaus<\/strong><\/a>\u00a0<\/h6>\n\n\n\n<p>One of the most well-known providers, Spamhaus, maintains several lists, including the <a href=\"https:\/\/www.spamhaus.org\/blocklists\/spamhaus-blocklist\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Spamhaus Block List (SBL)<\/strong><\/a>.\u00a0\u00a0\u00a0<\/p>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-spamcop1\"><a href=\"https:\/\/www.spamcop.net\/bl.shtml\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SpamCop<\/strong><\/a>\u00a0<\/h6>\n\n\n\n<p>This is another major public blacklist provider that many services use to identify and block spam sources.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-barracuda1\"><a href=\"https:\/\/campus.barracuda.com\/product\/emailsecuritygateway\/doc\/93197312\/allow-list-and-block-list\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Barracuda<\/strong><\/a>\u00a0<\/h6>\n\n\n\n<p>Barracuda is another one that provides the <a href=\"https:\/\/www.google.com\/search?sca_esv=d39e7dff067d00e3&amp;rlz=1C1GCEU_enZA1059ZA1063&amp;cs=0&amp;sxsrf=AE3TifNfKoKLvuTR3gQnKfwL575EGXtRFA%3A1760518263641&amp;q=Barracuda+Reputation+Block+List+%28BRBL%29&amp;sa=X&amp;ved=2ahUKEwjl27TN6aWQAxUpZkEAHaXSMl0QxccNegQIKRAB&amp;mstk=AUtExfBi-29Fk5Qx9LeiRYP9Ytb87jabQvyAdDOiD0w8m0IF_YEtEDOkl2_vVgmny47o_zrv0rDRL09QOntSlUEqZRX-yD_mLMLgBlv7mO0_9bZFrdJ0pDtosEUydlNhPfirzwYlV2KDVL84rd-3_v6RBC3EuOtX1iDWYKRkydP9EjkWaYyQQrg-GYSDNYzAgOPfpkNE8czLDPW_5z9DYYUxWvJdNrJWNDoM-UJxnK8uMlL2YEWLFT70G7a8AzmyQ-Ys5x12cSPrHKJI7igv5z76mEnz&amp;csui=3\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Barracuda Reputation Block List (BRBL)<\/strong><\/a>, which is widely used by email systems to filter spam.\u00a0\u00a0\u00a0<\/p>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-surbl1\"><a href=\"https:\/\/www.google.com\/search?sca_esv=d39e7dff067d00e3&amp;rlz=1C1GCEU_enZA1059ZA1063&amp;cs=0&amp;sxsrf=AE3TifNfKoKLvuTR3gQnKfwL575EGXtRFA%3A1760518263641&amp;q=SURBL&amp;sa=X&amp;ved=2ahUKEwjl27TN6aWQAxUpZkEAHaXSMl0QxccNegQIEhAB&amp;mstk=AUtExfBi-29Fk5Qx9LeiRYP9Ytb87jabQvyAdDOiD0w8m0IF_YEtEDOkl2_vVgmny47o_zrv0rDRL09QOntSlUEqZRX-yD_mLMLgBlv7mO0_9bZFrdJ0pDtosEUydlNhPfirzwYlV2KDVL84rd-3_v6RBC3EuOtX1iDWYKRkydP9EjkWaYyQQrg-GYSDNYzAgOPfpkNE8czLDPW_5z9DYYUxWvJdNrJWNDoM-UJxnK8uMlL2YEWLFT70G7a8AzmyQ-Ys5x12cSPrHKJI7igv5z76mEnz&amp;csui=3\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SURBL<\/strong><\/a>\u00a0<\/h6>\n\n\n\n<p><strong>Other common providers:<\/strong>\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-cisco-talos-intelligence\"><a href=\"https:\/\/www.talosintelligence.com\/reputation\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Cisco Talos Intelligence<\/strong><\/a>\u00a0<\/li>\n\n\n\n<li id=\"htoc-passive-spam-block-list-psbl\"><a href=\"https:\/\/psbl.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Passive Spam Block List (PSBL)<\/strong><\/a>\u00a0<\/li>\n\n\n\n<li id=\"htoc-sorbs\"><a href=\"https:\/\/www.google.com\/search?sca_esv=d39e7dff067d00e3&amp;rlz=1C1GCEU_enZA1059ZA1063&amp;cs=0&amp;sxsrf=AE3TifNfKoKLvuTR3gQnKfwL575EGXtRFA%3A1760518263641&amp;q=SORBS&amp;sa=X&amp;ved=2ahUKEwjl27TN6aWQAxUpZkEAHaXSMl0QxccNegQIJxAD&amp;mstk=AUtExfBi-29Fk5Qx9LeiRYP9Ytb87jabQvyAdDOiD0w8m0IF_YEtEDOkl2_vVgmny47o_zrv0rDRL09QOntSlUEqZRX-yD_mLMLgBlv7mO0_9bZFrdJ0pDtosEUydlNhPfirzwYlV2KDVL84rd-3_v6RBC3EuOtX1iDWYKRkydP9EjkWaYyQQrg-GYSDNYzAgOPfpkNE8czLDPW_5z9DYYUxWvJdNrJWNDoM-UJxnK8uMlL2YEWLFT70G7a8AzmyQ-Ys5x12cSPrHKJI7igv5z76mEnz&amp;csui=3\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SORBS<\/strong><\/a>\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-how-to-check-if-your-ip-is-blacklisted\"><strong>How to Check If Your IP Is Blacklisted<\/strong>&nbsp;<\/h2>\n\n\n\n<p>To find out if your IP is blacklisted, you can use any of these tools, as each one allows you to check whether your IP address has been flagged, along with the reason and, concurrently, the source of the blacklist.<\/p>\n\n\n\n<p><strong>1:<\/strong> Visit a trusted lookup tool such as:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-dnschecker-ip-blacklist-check\"><strong><a href=\"https:\/\/dnschecker.org\/ip-blacklist-checker.php\" target=\"_blank\" rel=\"noreferrer noopener\">DNSChecker IP Blacklist Check<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-mxtoolbox-blacklist-check\"><strong><a href=\"https:\/\/mxtoolbox.com\/blacklists.aspx\" target=\"_blank\" rel=\"noreferrer noopener\">MXToolbox Blacklist Check<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-whatismyipaddress-blacklist-check\"><strong><a href=\"https:\/\/whatismyipaddress.com\/blacklist-check\" target=\"_blank\" rel=\"noreferrer noopener\">WhatIsMyIPAddress Blacklist Check<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-spamhaus-lookup-tool\"><strong><a href=\"https:\/\/check.spamhaus.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">Spamhaus Lookup Tool<\/a>\u00a0<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>2:<\/strong> Enter your <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/whats-my-public-ip-address\/\">IP address<\/a><\/strong>.\u00a0<\/p>\n\n\n\n<p><strong>3:<\/strong> Review results and note the reason for blacklisting (if listed).&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-how-to-remove-your-ip-from-a-blacklist\"><strong>How to Remove Your IP from a Blacklist<\/strong>&nbsp;<\/h2>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-1-identify-the-cause\"><strong><em>1: Identify the Cause<\/em><\/strong>\u00a0<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-scan-your-devices-and-servers-for-malware-or-spam-scripts\">Scan your devices and servers for malware or spam scripts.\u00a0<\/li>\n\n\n\n<li id=\"htoc-change-compromised-passwords-and-secure-your-hosting-environment\">Change compromised passwords and secure your hosting environment.\u00a0<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-2-follow-the-blacklist-s-delisting-procedure\"><strong><em>2: Follow the Blacklist\u2019s Delisting Procedure<\/em><\/strong>\u00a0<\/h6>\n\n\n\n<p>Each blacklist has a unique removal process, so it is important to clearly understand the handling procedure based on the provider\u2019s Blacklist Delisting Policy and Procedure.\u00a0<\/p>\n\n\n\n<p>Example:\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-spamhaus-provides-a-removal-request-form-after-you-correct-the-issue\">Spamhaus provides a <strong>removal request form<\/strong> after you correct the issue.\u00a0<\/li>\n\n\n\n<li id=\"htoc-mxtoolbox-guides-you-through-contacting-the-blacklist-maintainer\">MXToolbox guides you through <strong>contacting the blacklist maintainer<\/strong>.\u00a0<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-3-wait-for-propagation\"><strong><em>3: Wait for Propagation<\/em><\/strong>\u00a0<\/h6>\n\n\n\n<p>Blacklist removal can take <strong>24 to 72 hours<\/strong> to update globally, depending on the specific blacklist, the cause of the listing, and whether it was an automatic or manual delisting process.\u00a0<\/p>\n\n\n\n<p><strong>TIP: <\/strong>If your IP is part of a shared server, and you evidently need help, 1-grid Support may need to handle the delisting process on your behalf.\u00a0\u00a0\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-how-to-prevent-future-blocks\"><strong>How to Prevent Future Blocks<\/strong>&nbsp;<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-avoid-sending-bulk-emails-through-shared-accounts\">Avoid sending bulk emails through shared accounts.\u00a0<\/li>\n\n\n\n<li id=\"htoc-don-t-use-blacklisted-third-party-mailers\">Don\u2019t use blacklisted third-party mailers.\u00a0<\/li>\n\n\n\n<li id=\"htoc-monitor-bounce-rates-and-adjust-your-sending-frequency\">Monitor bounce rates and adjust your sending frequency.\u00a0<\/li>\n\n\n\n<li id=\"htoc-use-security-plugins-and-firewalls-on-your-hosting-account\">Use security plugins and firewalls on your hosting account.\u00a0<\/li>\n\n\n\n<li id=\"htoc-regularly-scan-your-system-for-malware\">Regularly scan your system for malware.\u00a0<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-anti-virus-software\">Anti-Virus Software for Different OS<\/h3>\n\n\n\n<p>Here are a few free, high-quality applications that can significantly help you maintain a safe, healthy computer.\u00a0<\/p>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-windows\"><strong>Windows<\/strong>&nbsp;<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-avira-anti-virus\"><strong><a href=\"https:\/\/www.avira.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Avira Anti-virus<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-malwarebytes-anti-malware\"><strong><a href=\"https:\/\/www.malwarebytes.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Malwarebytes Anti-Malware<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-panda-free-anti-virus\"><strong><a href=\"https:\/\/www.pandasecurity.com\/en-us\/homeusers\/solutions\/free-antivirus\/\" target=\"_blank\" rel=\"noreferrer noopener\">Panda Free Anti-virus<\/a>\u00a0<\/strong><\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-mac\"><strong>Mac<\/strong>&nbsp;<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-avast-anti-virus\"><strong><a href=\"https:\/\/www.avast.com\/en-us\/free-mac-security\" target=\"_blank\" rel=\"noreferrer noopener\">Avast! Anti-virus<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-avira-anti-virus1\"><strong><a href=\"https:\/\/www.avira.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Avira Anti-virus<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-sophos-anti-virus\"><strong><a href=\"https:\/\/home.sophos.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Sophos Anti-virus<\/a>\u00a0<\/strong><\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-linux\"><strong>Linux<\/strong>&nbsp;<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-bitdefender-anti-virus\"><strong><a href=\"https:\/\/www.bitdefender.com\/business\/antivirus-for-unices.html\" target=\"_blank\" rel=\"noreferrer noopener\">Bitdefender Anti-virus<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-clamav\"><strong><a href=\"https:\/\/www.clamav.net\/\" target=\"_blank\" rel=\"noreferrer noopener\">ClamAV<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-sophos-anti-virus1\"><a href=\"https:\/\/www.sophos.com\/free-tools\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Sophos Anti-virus<\/strong><\/a>\u00a0<\/li>\n<\/ul>\n\n\n\n<p>If you notice recurring issues, consider upgrading to a <strong>Dedicated IP<\/strong> for better control; otherwise, you may see repeated blacklisting.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-tips-to-reduce-flags-and-maintain-reputation\"><strong>Tips to Reduce Flags and Maintain Reputation<\/strong>&nbsp;<\/h2>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-keep-excellent-email-hygiene\"><strong>Keep Excellent Email Hygiene<\/strong>&nbsp;<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-maintain-a-clean-email-list\">Maintain a clean email list.\u00a0<\/li>\n\n\n\n<li id=\"htoc-avoid-sending-bulk-emails-in-a-short-period-of-time\">Avoid sending bulk emails in a short period of time.\u00a0<\/li>\n\n\n\n<li id=\"htoc-monitor-spam-complaints-and-address-any-issues-immediately\">Monitor <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/blocked-via-mailchannels-due-to-spam\/\" target=\"_blank\" rel=\"noreferrer noopener\">spam complaints<\/a> <\/strong>and address any issues immediately.\u00a0<\/li>\n\n\n\n<li id=\"htoc-utilize-spf-dkim-and-dmarc-records-to-authenticate-your-emails\">Utilise<strong> <a href=\"https:\/\/1grid.co.za\/knowledge\/what-is-an-spf-record-and-why-it-matters-in-dns-for-email\/\" target=\"_blank\" rel=\"noreferrer noopener\">SPF<\/a><\/strong>, <a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-enable-dkim-and-spf-on-your-mail-domain\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>DKIM<\/strong><\/a>, and <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/cpanel-how-to-add-dmarc-record\/\" target=\"_blank\" rel=\"noreferrer noopener\">DMARC<\/a> <a href=\"https:\/\/1grid.co.za\/knowledge\/understanding-dns-records-and-how-to-check-these\/\" target=\"_blank\" rel=\"noreferrer noopener\">records<\/a><\/strong> to authenticate your emails.\u00a0<\/li>\n\n\n\n<li id=\"htoc-avoid-using-spam-like-trigger-words-suspicious-links-and-subject-lines-in-your-emails\"><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/blocked-via-mailchannels-due-to-spam\/\" target=\"_blank\" rel=\"noreferrer noopener\">Avoid using spam-like trigger words,<\/a> <a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-avoid-mailchannels-blocks\/\" target=\"_blank\" rel=\"noreferrer noopener\">suspicious links<\/a><\/strong> and subject lines in your emails.\u00a0<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-strengthen-your-security-measures\"><strong>Strengthen your Security Measures<\/strong>&nbsp;<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-run-a-regular-malware-scan-on-all-devices-connected-to-your-network\">Run a regular <strong><a href=\"https:\/\/www.malwarebytes.com\/malware\" target=\"_blank\" rel=\"noreferrer noopener\">malware<\/a> <\/strong>scan on all devices connected to your network.\u00a0<\/li>\n\n\n\n<li id=\"htoc-use-strong-passwords\">Use <a href=\"https:\/\/www.cisa.gov\/secure-our-world\/use-strong-passwords\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>strong passwords<\/strong><\/a>.\u00a0<\/li>\n\n\n\n<li id=\"htoc-properly-configure-your-firewall-if-you-have-one\">Properly configure your firewall if you have one.\u00a0<\/li>\n\n\n\n<li id=\"htoc-keep-your-software-and-plugins-updated\">Keep your software and plugins updated.\u00a0<\/li>\n\n\n\n<li id=\"htoc-secure-your-internet-connection-with-strong-passwords\">Secure your internet connection with <a href=\"https:\/\/www.cisa.gov\/secure-our-world\/use-strong-passwords\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>strong passwords<\/strong><\/a>.\u00a0<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\" id=\"htoc-regularly-check-your-blacklist-status\"><strong>Regularly Check your Blacklist Status<\/strong>&nbsp;<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-check-your-ip-address-against-common-blacklists-to-identify-issues-early-on\">Check your<strong> <a href=\"https:\/\/1grid.co.za\/knowledge\/whats-my-public-ip-address\/\">IP address<\/a> <\/strong>against common blacklists to identify issues early on.\u00a0<\/li>\n\n\n\n<li id=\"htoc-use-online-blacklist-tools-to-monitor-your-ip-reputation\">Use online blacklist tools to monitor your IP reputation.\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-when-to-contact-1-grid-support\"><strong>When to Contact 1-grid Support<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Contact <strong>1-grid Support<\/strong> if:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-you-re-on-a-shared-hosting-plan-and-your-ip-is-blacklisted\">You\u2019re on a <strong>shared hosting plan<\/strong> and your IP is blacklisted.\u00a0<\/li>\n\n\n\n<li id=\"htoc-the-blacklist-is-mail-server-related-mailchannels-or-outbound-mail-ips\">The blacklist is <strong>mail server<\/strong>&#8211;<strong>related<\/strong> (<strong><a href=\"https:\/\/1grid.co.za\/knowledge\/?s=mailchannels&amp;ht-kb-search=1&amp;lang=\">MailChannels<\/a> <\/strong>or outbound mail IPs).\u00a0<\/li>\n\n\n\n<li id=\"htoc-you-ve-tried-delisting-steps-but-the-issue-persists\">You\u2019ve tried delisting steps, and the issue persists.\u00a0<\/li>\n<\/ul>\n\n\n\n<p>Provide:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-your-ip-address\">Your IP address.\u00a0<\/li>\n\n\n\n<li id=\"htoc-the-blacklist-provider-s-report\">The blacklist provider\u2019s report.\u00a0<\/li>\n\n\n\n<li id=\"htoc-any-delisting-reference-number-if-applicable\">Any delisting reference number (if applicable).\u00a0<\/li>\n<\/ul>\n\n\n\n<p>We&#8217;ll review and either guide you further or escalate to the appropriate Network or Mail Administrator if further intervention is required.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-faqs\"><strong>FAQs<\/strong>&nbsp;<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>What is IP blacklisting?<\/strong><\/summary>\n<p id=\"htoc-1\">It\u2019s when your IP address is added to a database that flags suspicious or spam activity, causing blocked emails or restricted access.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Why was my IP blacklisted?<\/strong><\/summary>\n<p id=\"htoc-11\">Common causes certainly can include sending spam, using infected devices, or sharing a compromised server.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>How do I check if my IP is blacklisted?<\/strong><\/summary>\n<p id=\"htoc-111\">Use tools like <strong><a href=\"https:\/\/check.spamhaus.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">Spamhaus<\/a> <\/strong>or <a href=\"https:\/\/mxtoolbox.com\/blacklists.aspx\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>MXToolbox<\/strong><\/a> to check your IP\u2019s status accordingly.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>How can I remove my IP from a blacklist?<\/strong><\/summary>\n<p id=\"htoc-1111\">Fix the issue (malware, email list hygiene), then follow the delisting steps from the blacklist provider.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>How long does blacklisting last?<\/strong><\/summary>\n<p id=\"htoc-11111\">Once you\u2019ve fixed the cause and requested delisting, it usually clears within 24\u201372 hours.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Can 1-grid help me remove my IP?<\/strong><\/summary>\n<p id=\"htoc-111111\">Yes, if you\u2019re on a shared server or mail IP, then you can contact us, and we\u2019ll assist with escalation to MailChannels or the appropriate blacklist.<\/p>\n<\/details>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-\"><strong>Additional Resources\u00a0<\/strong><\/h2>\n\n\n\n<p><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/everything-you-need-to-know-about-an-ip-address\/\" target=\"_blank\" rel=\"noreferrer noopener\">Everything You Need to Know About an IP Address<\/a>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/whats-my-public-ip-address\/\" target=\"_blank\" rel=\"noreferrer noopener\">What Is My Public IP Address and How Do I Find It?<\/a> \u00a0<\/strong><br><a href=\"https:\/\/1grid.co.za\/knowledge\/?s=email&amp;ht-kb-search=1&amp;lang=\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Email FAQs<\/strong><\/a>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/?s=domains&amp;ht-kb-search=1&amp;lang=\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Domains FAQs<\/strong><\/a>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/tips-for-choosing-a-great-domain-name\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Choosing a Great Domain Name and Why It Matters for Your Brand Online<\/strong><\/a><strong>\u00a0<\/strong>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/everything-you-need-to-know-about-domains-at-1-grid\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Everything You Need to Know About Domains at 1-grid<\/strong><\/a>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/getting-started-with-website-builder-at-1-grid\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Get Started with Website Builder at 1-grid<\/strong><\/a><strong>\u00a0\u00a0 <\/strong>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/what-is-professional-email-from-1grid\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>What is Professional Email from 1-grid?<\/strong><\/a><strong>\u00a0<\/strong>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/why-ssl-the-purpose-of-using-ssl-certificates\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Why SSL? The Purpose of Using SSL Certificates\u00a0<\/strong><\/a><strong> <\/strong>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/?s=DNS&amp;ht-kb-search=1&amp;lang=\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Everything You Need to Know About DNS for Your Domain<\/strong><\/a>\u00a0<br><a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-update-your-domains-nameservers-at-1-grid\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>How to Update Your Domain\u2019s Nameservers at 1-grid<\/strong><\/a><strong>\u00a0\u00a0<\/strong>\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-need-additional-support\"><strong>Need Additional Support?<\/strong>&nbsp;<\/h2>\n\n\n\n<p><strong>We&#8217;re Here to <\/strong><a href=\"https:\/\/1grid.co.za\/knowledge\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Help<\/strong><\/a><strong>:<\/strong>&nbsp;<\/p>\n\n\n\n<p>Understanding IP blacklisting and how to resolve this doesn\u2019t have to feel technical with this easy-to-reference guide. Stuck? Contact our Support Team for clarity and guidance (<a href=\"https:\/\/1grid.co.za\/contact-us\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>https:\/\/1grid.co.za\/contact-us\/<\/strong><\/a>). We&#8217;re ready to see how we can help!\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you\u2019ve suddenly noticed that your emails aren\u2019t being delivered or your website access is blocked, your IP address might be blacklisted but it&#8217;s not permanent.\u00a0 IP blacklisting can seem alarming, but there\u2019s no need to worry because it\u2019s fixable!\u00a0By understanding the cause, following delisting steps, and keeping your systems&#8230;<\/p>\n","protected":false},"author":21,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"ht-kb-category":[1173,1174],"ht-kb-tag":[1512,336,1514,541,542,1515,1046],"class_list":["post-24534","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-email","ht_kb_category-hosting","ht_kb_tag-blacklisting","ht_kb_tag-email","ht_kb_tag-email-troubleshooting","ht_kb_tag-ip","ht_kb_tag-ip-address","ht_kb_tag-ip-blacklisting","ht_kb_tag-troubleshooting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.0 - 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