{"id":19575,"date":"2026-03-11T14:10:32","date_gmt":"2026-03-11T14:10:32","guid":{"rendered":"https:\/\/iprovpn.com\/resources\/?p=19575"},"modified":"2026-03-11T14:10:43","modified_gmt":"2026-03-11T14:10:43","slug":"mxtoolbox","status":"publish","type":"post","link":"https:\/\/iprovpn.com\/resources\/mxtoolbox\/","title":{"rendered":"MXToolbox: Your Tool for Fixing Email and Network Problems"},"content":{"rendered":"<p><span style=\"font-weight: 400\">MXToolbox is a popular online service that helps people check and fix issues with email delivery, DNS settings, and network problems. If you send emails for work or run a website, you may have heard of MXToolbox. It started as a simple set of free tools and has grown into a trusted helper for millions of IT pros, business owners, and email admins.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Many people use MXToolbox every day to make sure their emails reach the inbox instead of the spam folder. It offers quick checks for things like blacklists, mail servers, and domain health.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">        <div class=\"iprovpn_btn_cta_row\">\n    \t<a class=\"btn_cta\" href=\"https:\/\/iprovpn.com\/buy-vpn\" title=\"Get iProVPN Now\">Get iProVPN NOW <i class=\"fas fa-long-arrow-alt-right\"><\/i><\/a>\n    \t<\/div>\n    <\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 ez-toc-wrap-center counter-flat ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/div>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#What_is_MXToolbox\" >What is MXToolbox?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Why_Email_Delivery_Matters\" >Why Email Delivery Matters<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Features_of_MXToolbox\" >Features of MXToolbox<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#How_to_Use_MXToolbox_SuperTool\" >How to Use MXToolbox SuperTool<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Domain_Health_Check_in_MXToolbox\" >Domain Health Check in MXToolbox<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Email_Authentication_Tools_SPF_DKIM_DMARC\" >Email Authentication Tools: SPF, DKIM, DMARC<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Monitoring_and_Paid_Plans_in_MXToolbox\" >Monitoring and Paid Plans in MXToolbox<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Who_Uses_MXToolbox\" >Who Uses MXToolbox?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#FAQs\" >FAQs<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#What_is_MXToolbox_mainly_used_for\" >What is MXToolbox mainly used for?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Is_MXToolbox_free_to_use\" >Is MXToolbox free to use?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#How_do_I_check_if_my_domain_is_on_a_blacklist_with_MXToolbox\" >How do I check if my domain is on a blacklist with MXToolbox?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Does_MXToolbox_help_with_DMARC_setup\" >Does MXToolbox help with DMARC setup?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Can_MXToolbox_monitor_my_email_server_all_the_time\" >Can MXToolbox monitor my email server all the time?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/iprovpn.com\/resources\/mxtoolbox\/#Start_Browsing_Privately\" >Start Browsing Privately!<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_MXToolbox\"><\/span>What is MXToolbox?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">MXToolbox is a website that provides free and paid tools for checking email and network setups. Its name comes from &#8220;MX,&#8221; which stands for Mail Exchanger records in DNS. These records tell the internet where to send emails for a domain.<\/span><\/p>\n<p><span style=\"font-weight: 400\">The site began years ago when its creators built tools they needed for their own work and decided to share them with others. Today, MXToolbox helps fix common problems like emails not arriving, servers being blocked, or DNS errors. It is fast, accurate, and used by people all over the world.<\/span><\/p>\n<p><span style=\"font-weight: 400\">You do not need to install anything. Just go to mxtoolbox.com, type in a domain name or IP address, and get results right away. This makes MXToolbox very handy for quick checks.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Email_Delivery_Matters\"><\/span>Why Email Delivery Matters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">Email is key for most businesses. You send newsletters, invoices, support replies, and more. But if your email goes to spam or gets blocked, it can hurt your work.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Problems happen because of bad settings, spam complaints, or server issues. MXToolbox helps find these problems fast so you can fix them before they cause big trouble. For example, if your IP is on a blacklist, many email providers will reject your messages. MXToolbox shows you this in seconds.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Good email delivery builds trust with customers. When emails land in the inbox, people read them and respond. MXToolbox supports this by giving clear information on what is wrong and how to improve.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Features_of_MXToolbox\"><\/span>Features of MXToolbox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">MXToolbox has many tools, but some stand out as the most used.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">First, the MX Lookup is the main tool. You enter a domain, and it shows the MX records in order of priority. This tells you which servers handle email for that domain. It also links to diagnostics, like checking if the server responds well.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Another popular one is the Blacklist Check. This tests your IP or domain against over 100 blacklists. If listed, it explains why and gives steps to get removed. Blacklists stop spam, but sometimes good servers get listed by mistake. MXToolbox helps fix that.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The SMTP Diagnostics tool connects to your mail server. It checks for open relay (a security risk), reverse DNS, and response times. This helps see if your server is healthy and ready to send emails.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">DNS Lookup shows all kinds of DNS records, like A, TXT for SPF, or CNAME. It is useful when setting up new services or fixing errors.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_to_Use_MXToolbox_SuperTool\"><\/span>How to Use MXToolbox SuperTool<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">The SuperTool is a smart feature in MXToolbox. You type one thing: a domain, IP, or hostname, and it runs many checks at once. It covers MX records, DNS, blacklists, and SMTP tests.<\/span><\/p>\n<p><span style=\"font-weight: 400\">This saves time because you get all the results in one place. Links guide you to more details if needed. You also see a history of past checks, which is great for tracking changes over time.<\/span><\/p>\n<p><span style=\"font-weight: 400\">To use it, go to the site, enter your info, and hit search. The page loads with sections for each check. Green means good, red means problems to fix. It is very user-friendly, even if you are new to tech.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Domain_Health_Check_in_MXToolbox\"><\/span>Domain Health Check in MXToolbox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">The Domain Health Check is one of the best tools in MXToolbox. It runs hundreds of tests on your domain. This includes email, web server, DNS, and blacklist checks.<\/span><\/p>\n<p><span style=\"font-weight: 400\">You get a single report that shows everything in one view. It points out critical issues first, such as whether your domain is blacklisted or DNS is slow. Paid users get monitoring, so MXToolbox watches your domain daily and alerts you to new problems.<\/span><\/p>\n<p><span style=\"font-weight: 400\">This tool is perfect for businesses that want to keep everything running smoothly. It helps prevent downtime and email failures.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Email_Authentication_Tools_SPF_DKIM_DMARC\"><\/span>Email Authentication Tools: SPF, DKIM, DMARC<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Email spoofing is a big problem where bad actors pretend to send from your domain. MXToolbox has tools to set up and check authentication.<\/span><\/p>\n<p><span style=\"font-weight: 400\">SPF (Sender Policy Framework) lists which servers can send email for your domain. MXToolbox has an SPF lookup and generator to build or fix records.<\/span><\/p>\n<p><span style=\"font-weight: 400\">DKIM adds a digital signature to prove emails are real. The tool checks if it is set up right.<\/span><\/p>\n<p><span style=\"font-weight: 400\">DMARC builds on SPF and DKIM. It tells receivers what to do with failed emails. MXToolbox offers DMARC lookup, generator, and report analyzer. The analyzer turns complex XML reports into easy-to-read summaries.<\/span><\/p>\n<p><span style=\"font-weight: 400\">These tools help stop phishing and improve delivery rates. Many providers, like Google and Microsoft, require good DMARC to trust your emails.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Monitoring_and_Paid_Plans_in_MXToolbox\"><\/span>Monitoring and Paid Plans in MXToolbox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Free tools in MXToolbox are great for one-time checks. For ongoing needs, paid plans add monitoring and alerts.<\/span><\/p>\n<p><span style=\"font-weight: 400\">With monitoring, MXToolbox checks your domain or IPs often and emails you if something goes wrong, like a new blacklist entry or DNS change.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Delivery Center is a paid product focused on email. It watches senders, SPF, inbox placement, and complaints. It helps big senders keep high delivery rates.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Adaptive Blacklist Monitoring tracks all your IPs, even from third-party services. SPF Flattening manages long SPF records automatically.<\/span><\/p>\n<p><span style=\"font-weight: 400\">These features save time and prevent surprises for companies that send lots of emails.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Who_Uses_MXToolbox\"><\/span>Who Uses MXToolbox?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">MXToolbox is used by IT admins, email marketers, website owners, and support teams. Small businesses use free tools to set up email correctly. Big companies use paid monitoring to protect their brand.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Tech pros like it because it is fast and reliable. It supports global operations with accurate data.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Even security teams use it to check for misconfigurations that could lead to attacks.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">\n<div class=\"blog_faq\">\n                <div class=\"faq\">\n            <h3 class=\"faq_title\"><span class=\"ez-toc-section\" id=\"What_is_MXToolbox_mainly_used_for\"><\/span>What is MXToolbox mainly used for? <i class=\"fa fa-plus\"><\/i><span class=\"ez-toc-section-end\"><\/span><\/h3> \n                        <div class=\"faq_description\">\n                <p>MXToolbox is mainly used to check DNS records, test email servers, see if your IP is blacklisted, and improve email delivery.\r\n<\/p>\n            <\/div>\n            <\/div>\n                \n                <div class=\"faq\">\n            <h3 class=\"faq_title\"><span class=\"ez-toc-section\" id=\"Is_MXToolbox_free_to_use\"><\/span>Is MXToolbox free to use? <i class=\"fa fa-plus\"><\/i><span class=\"ez-toc-section-end\"><\/span><\/h3> \n                        <div class=\"faq_description\">\n                <p>Yes, many tools like MX Lookup, Blacklist Check, and DNS Lookup are free. Paid plans add monitoring, alerts, and advanced email features.\r\n<\/p>\n            <\/div>\n            <\/div>\n                \n                <div class=\"faq\">\n            <h3 class=\"faq_title\"><span class=\"ez-toc-section\" id=\"How_do_I_check_if_my_domain_is_on_a_blacklist_with_MXToolbox\"><\/span>How do I check if my domain is on a blacklist with MXToolbox? <i class=\"fa fa-plus\"><\/i><span class=\"ez-toc-section-end\"><\/span><\/h3> \n                        <div class=\"faq_description\">\n                <p>Go to the Blacklist Check tool, enter your IP or domain, and it scans over 100 lists. It shows results and removal advice if listed.\r\n<\/p>\n            <\/div>\n            <\/div>\n                \n                <div class=\"faq\">\n            <h3 class=\"faq_title\"><span class=\"ez-toc-section\" id=\"Does_MXToolbox_help_with_DMARC_setup\"><\/span>Does MXToolbox help with DMARC setup? <i class=\"fa fa-plus\"><\/i><span class=\"ez-toc-section-end\"><\/span><\/h3> \n                        <div class=\"faq_description\">\n                <p>Yes, it has a DMARC Record Generator, Lookup, and Report Analyzer to make setup and understanding easy.\r\n<\/p>\n            <\/div>\n            <\/div>\n                \n                <div class=\"faq\">\n            <h3 class=\"faq_title\"><span class=\"ez-toc-section\" id=\"Can_MXToolbox_monitor_my_email_server_all_the_time\"><\/span>Can MXToolbox monitor my email server all the time? <i class=\"fa fa-plus\"><\/i><span class=\"ez-toc-section-end\"><\/span><\/h3> \n                        <div class=\"faq_description\">\n                <p>Free version does not, but paid plans like Delivery Center offer daily monitoring, alerts for blacklists, and email health tracking.\r\n<\/p>\n            <\/div>\n            <\/div>\n            \n    \n    \n    \n    \n    \n    \n    <\/div>\n\n<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">MXToolbox is a simple yet powerful tool that makes email and network troubleshooting easy. From basic lookups to full domain health reports, it covers what most people need to keep emails flowing and systems healthy.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Whether you are fixing a one-time problem or watching your setup long-term, MXToolbox is worth bookmarking. It saves time, reduces headaches, and helps your business communicate better.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Next time you have email trouble, head to mxtoolbox.com and give it a try. You will likely find the answer fast and get back to work quickly.<\/span><\/p>\n<p><span style=\"font-weight: 400\">    \t<hr class=\"mt-5\">\n        <div class=\"custom_CTA mt-5\">\n            <div class=\"row\">\n                <div class=\"col-lg-7 align-self-center text-lg-left text-center\">\n                    <h3><span class=\"ez-toc-section\" id=\"Start_Browsing_Privately\"><\/span>Start Browsing Privately!<span class=\"ez-toc-section-end\"><\/span><\/h3>\n                    <p clas=\"mb-0\">iProVPN encrypts your data for protection against hackers and surveillance. Unblock your favorite streaming platforms instantly with the best VPN for streaming.<\/p>\n                <\/div>\n                <div class=\"col-lg-5 align-self-center text-center\">\n                    <a class=\"custom_btn_cta\" href=\"https:\/\/iprovpn.com\/buy-vpn\" title=\"Get iProVPN Now\">Get iProVPN NOW<\/a>\n                <\/div>\n            <\/div>\n    \t<\/div>\n    <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>MXToolbox is a popular online service that helps people check and fix issues with email delivery, DNS settings, and network problems. If you send emails for work or run a website, you may have heard of MXToolbox. It started as a simple set of free tools and has grown into a trusted helper for millions [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":20073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[522],"tags":[],"class_list":["post-19575","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>MXToolbox: Your Tool for Fixing Email and Network Problems<\/title>\n<meta name=\"description\" content=\"MXToolbox is your essential online tool for quickly diagnosing and fixing email delivery, DNS, blacklist, and network issues reliably.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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