{"id":2561,"date":"2025-06-27T12:01:04","date_gmt":"2025-06-27T12:01:04","guid":{"rendered":"https:\/\/www.arysontechnologies.com\/how-to\/?p=2561"},"modified":"2025-06-27T12:50:35","modified_gmt":"2025-06-27T12:50:35","slug":"fix-outlook-error-0x800ccc0b","status":"publish","type":"post","link":"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/","title":{"rendered":"How to Fix Outlook Error 0x800CCC0B: The Complete Guide"},"content":{"rendered":"<p class=\"block_sum\"><em><strong>Summary: <\/strong>Outlook error 0x800CCC0B indicates a connection problem between your Outlook application and your email server. This error prevents you from sending or receiving emails, significantly disrupting your daily tasks and workflow. If you encounter this message, it&#8217;s crucial to address it promptly to restore your email functionality. This guide will explain the causes behind Outlook error 0x800CCC0B and provide step-by-step methods to fix it. Additionally, we&#8217;ll introduce the <a href=\"https:\/\/www.arysontechnologies.com\/outlook-pst-repair.html\"><strong>Outlook PST Repair Tool<\/strong><\/a> as a hassle-free solution for more severe issues.<\/em><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\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: #999;color:#999\" 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: #999;color:#999\" 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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#What_is_Outlook_Error_0x800CCC0B\" >What is Outlook Error 0x800CCC0B?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Common_Reasons_for_Outlook_SMTP_Error_0x800CCC0B\" >Common Reasons for Outlook SMTP Error 0x800CCC0B<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#How_to_Fix_Outlook_Error_0x800CCC0B\" >How to Fix Outlook Error 0x800CCC0B?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Method_01_Check_Your_Internet_Connection\" >Method 01: Check Your Internet Connection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Method_02_Verify_Outlook_SMTP_Settings\" >Method 02: Verify Outlook SMTP Settings<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Steps_to_Resolve_0x800CCC0B_Outlook_SMTP_Settings\" >Steps to Resolve 0x800CCC0B Outlook SMTP Settings:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Method_03_Increase_Server_Timeout_Setting_in_Outlook\" >Method 03: Increase Server Timeout Setting in Outlook<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Method_04_Disable_Firewall_and_Antivirus_Temporarily\" >Method 04: Disable Firewall and Antivirus Temporarily<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Method_05_Use_Inbox_Repair_Tool_Scanpstexe_for_Outlook_Errors\" >Method 05: Use Inbox Repair Tool (Scanpst.exe) for Outlook Errors<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Error_0x800CCC0B_Outlook_Solution_%E2%80%93_Hassle-Free_Recovery\" >Error 0x800CCC0B Outlook Solution &#8211; Hassle-Free Recovery<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Why_Choose_Aryson_Outlook_PST_Repair_Tool\" >Why Choose Aryson Outlook PST Repair Tool?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#How_to_Repair_Damaged_Outlook_Profile\" >How to Repair Damaged Outlook Profile:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Conclusion\" >Conclusion<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#Frequently_Asked_Questions_FAQs\" >Frequently Asked Questions (FAQs):-<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"What_is_Outlook_Error_0x800CCC0B\"><\/span>What is Outlook Error 0x800CCC0B?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Error 0x800CCC0B in Outlook typically appears with a message similar to:<\/p>\n<p>&#8220;Sending reported error (0x800CCC0B): The operation timed out waiting for a response from the receiving (POP) server.&#8221;<\/p>\n<p>This message signifies that Outlook anticipated a timely response from your email server but did not receive it. It frequently occurs when the connection to your mail server is slow, unstable, or interrupted.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Common_Reasons_for_Outlook_SMTP_Error_0x800CCC0B\"><\/span>Common Reasons for Outlook SMTP Error 0x800CCC0B<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Several factors can cause this Outlook timeout error. Understanding these can help you pinpoint the solution:<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td>\n<p><strong>Causes<\/strong><\/p>\n<\/td>\n<td>\n<p><strong>What It Means<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Slow or unstable internet<\/p>\n<\/td>\n<td>\n<p>Because of slow internet, Outlook waits too long and times out.<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Incorrect email server settings<\/p>\n<\/td>\n<td>\n<p>If your server address, port, or encryption is wrong, Outlook can\u2019t connect properly.<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Firewall or antivirus interference<\/p>\n<\/td>\n<td>\n<p>Sometimes, security software blocks Outlook\u2019s connection, which causes errors.<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Large email attachments<\/p>\n<\/td>\n<td>\n<p>Since big emails take more time, they may cause delays or errors when sending.<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Corrupted Outlook data file (PST)<\/p>\n<\/td>\n<td>\n<p>When the data file is damaged, Outlook can\u2019t send or receive emails correctly.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"How_to_Fix_Outlook_Error_0x800CCC0B\"><\/span>How to Fix Outlook Error 0x800CCC0B?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are several effective methods to resolve Outlook error 0x800CCC0B. You can try these solutions one by one to fix your error. Let&#8217;s explore each process in detail.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_01_Check_Your_Internet_Connection\"><\/span>Method 01: Check Your Internet Connection<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A slow or unstable internet connection is a common cause of Outlook timeouts. Ensure your connection is stable to fix Outlook error 0x800CCC0B:<\/p>\n<ul>\n<li><strong>Restart your router:<\/strong> Power cycling your router can resolve temporary network glitches.<\/li>\n<li><strong>Test internet speed:<\/strong> Open various websites to confirm your internet speed and stability.<\/li>\n<li><strong>Switch to a wired connection:<\/strong> If possible, try a wired Ethernet connection for a more stable link.<\/li>\n<\/ul>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_02_Verify_Outlook_SMTP_Settings\"><\/span>Method 02: Verify Outlook SMTP Settings<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Incorrect incoming and outgoing server details are a frequent culprit. Double-check your Outlook SMTP settings:<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td>\n<p><strong>Setting<\/strong><\/p>\n<\/td>\n<td>\n<p><strong>Example for Gmail<\/strong><\/p>\n<\/td>\n<td>\n<p><strong>Example for Outlook.com<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Incoming Server (POP)<\/p>\n<\/td>\n<td>\n<p>pop.gmail.com (Port 995, SSL)<\/p>\n<\/td>\n<td>\n<p>pop-mail.outlook.com (Port 995, SSL)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Outgoing Server (SMTP)<\/p>\n<\/td>\n<td>\n<p>smtp.gmail.com (Port 587, TLS)<\/p>\n<\/td>\n<td>\n<p>smtp-mail.outlook.com (Port 587, TLS)<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Note:<\/strong> Always refer to your email provider&#8217;s official website for the exact and most up-to-date server details.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Resolve_0x800CCC0B_Outlook_SMTP_Settings\"><\/span>Steps to Resolve 0x800CCC0B Outlook SMTP Settings:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>Open <strong>Outlook<\/strong> on your system.<\/li>\n<li>Go to <strong>File<\/strong> &gt; <strong>Account Settings<\/strong> &gt; <strong>Account Settings<\/strong>.<\/li>\n<li>Choose your email account and click <strong>Change<\/strong>.<\/li>\n<li>Verify the server names, port numbers, and encryption methods carefully.<\/li>\n<\/ol>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_03_Increase_Server_Timeout_Setting_in_Outlook\"><\/span>Method 03: Increase Server Timeout Setting in Outlook<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Increasing the server timeout period can give Outlook more time to connect and receive a response from the mail server, which can help fix Outlook error 0x800CCC0B, especially with slower connections or large emails.<\/p>\n<ol>\n<li>Open <strong>Outlook<\/strong> on your PC.<\/li>\n<li>Click <strong>File<\/strong> &gt; <strong>Account Settings<\/strong> &gt; <strong>Account Settings<\/strong>.<\/li>\n<li>Select your email account and click <strong>Change<\/strong>.<\/li>\n<li>Click <strong>More Settings<\/strong> &gt; <strong>Advanced<\/strong> tab.<\/li>\n<li>Under <strong>Server Timeouts<\/strong>, increase the slider to <strong>1-2 minutes<\/strong> (or more if needed).<\/li>\n<li>Click <strong>OK<\/strong> and restart Outlook.<\/li>\n<\/ol>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_04_Disable_Firewall_and_Antivirus_Temporarily\"><\/span>Method 04: Disable Firewall and Antivirus Temporarily<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sometimes, security software can interfere with Outlook&#8217;s ability to connect to email servers, causing connection timeout errors.<\/p>\n<ol>\n<li>Temporarily disable your <strong>firewall<\/strong> or <strong>antivirus<\/strong> software.<\/li>\n<li>Try sending or receiving emails again in Outlook.<\/li>\n<li>If the issue is resolved, add Outlook to your firewall or antivirus exceptions list.<\/li>\n<li><strong>Important:<\/strong> Remember to re-enable your security software immediately after testing to protect your system.<\/li>\n<\/ol>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_05_Use_Inbox_Repair_Tool_Scanpstexe_for_Outlook_Errors\"><\/span>Method 05: Use Inbox Repair Tool (Scanpst.exe) for Outlook Errors<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If your Outlook PST file has minor corruption, you can use Microsoft&#8217;s built-in Inbox Repair Tool (<a href=\"https:\/\/www.arysontechnologies.com\/updates\/download-scanpst-exe-tool\/\"><strong>ScanPST.exe<\/strong><\/a>). This tool is designed for small corruptions and can often help resolve errors stemming from a damaged data file.<\/p>\n<ol>\n<li>Firstly, close <strong>Outlook<\/strong> from your system.<\/li>\n<li>Search for Scanpst.exe on your PC. The location typically varies by Outlook version and Windows installation (e.g., C:\\Program Files (x86)\\Microsoft Office\\root\\Office16 for Outlook 2016\/2019\/365).<\/li>\n<li>Open the tool and <strong>Browse<\/strong> to select your PST file.<\/li>\n<li>Click <strong>Start<\/strong> to scan and repair the file.<\/li>\n<\/ol>\n<p><strong>Important Note:<\/strong> If your Outlook profile is severely corrupted, ScanPST.exe may not be sufficient. In such cases, consider the alternative method mentioned below.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Error_0x800CCC0B_Outlook_Solution_%E2%80%93_Hassle-Free_Recovery\"><\/span>Error 0x800CCC0B Outlook Solution &#8211; Hassle-Free Recovery<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>For severe PST file corruption, the <strong>Aryson Outlook PST Repair Tool<\/strong> offers a more robust and hassle-free solution. This tool is specifically designed with a smart algorithm to provide quick and comprehensive recovery from damaged or corrupted Outlook files with ease. You don&#8217;t need technical expertise to use it, thanks to its simple interface. Additionally, this tool supports recovery from encrypted and password-protected PST files without any data loss.<span class=\"block_btn\"><a class=\"custom-download-btn\" href=\"https:\/\/www.arysontechnologies.com\/demo-version\/aryson-outlook-recovery.exe\"><i class=\"icon-windows\"><\/i> Download Now<\/a>\u00a0\u00a0<a class=\"custom-buy-btn\" href=\"https:\/\/www.arysontechnologies.com\/outlook-recovery\/order-now.html\"><i class=\"icon-windows\"><\/i> Purchase Now<\/a><\/span><\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Why_Choose_Aryson_Outlook_PST_Repair_Tool\"><\/span>Why Choose Aryson Outlook PST Repair Tool?<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>This tool helps you to fix Outlook error 0x800CCC0B with minimal disruption, especially if the root cause of the error is PST file corruption. It quickly repairs damaged PST files without affecting your existing data. Plus, it supports all Outlook versions and efficiently recovers emails, contacts, calendars, and more.<\/p>\n<p><strong>Demo Version:<\/strong> A free demo version of this software is available for you to explore its features and functions without any restrictions before purchasing.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"How_to_Repair_Damaged_Outlook_Profile\"><\/span>How to Repair Damaged Outlook Profile:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>Firstly, download and install the <strong>Outlook PST Repair Tool<\/strong> on your system.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2565\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/1-2.jpg\" alt=\"install the Outlook PST Repair Tool\" width=\"700\" height=\"373\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/1-2.jpg 700w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/1-2-300x160.jpg 300w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/1-2-698x373.jpg 698w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n<li>Next, select the <strong>Open<\/strong> option and <strong>Browse<\/strong> to the corrupted PST file.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2566\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/2-2.jpg\" alt=\"Browse to the corrupted PST file\" width=\"700\" height=\"373\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/2-2.jpg 700w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/2-2-300x160.jpg 300w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/2-2-698x373.jpg 698w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n<li>Then, choose the <strong>Recovery Mode<\/strong> based on your file corruption level.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2567\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/3-1.jpg\" alt=\"choose the Recovery Mode\" width=\"700\" height=\"373\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/3-1.jpg 700w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/3-1-300x160.jpg 300w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/3-1-698x373.jpg 698w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n<li>After that, you can cross-verify the recovered data in the preview window.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2568\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/4-1.jpg\" alt=\"recovered data\" width=\"700\" height=\"373\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/4-1.jpg 700w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/4-1-300x160.jpg 300w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/4-1-698x373.jpg 698w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n<li>Finally, click <strong>Save<\/strong> and choose a different saving format or location for the recovered data.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2569\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/5-1.jpg\" alt=\"click Save and choose\" width=\"700\" height=\"373\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/5-1.jpg 700w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/5-1-300x160.jpg 300w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2025\/06\/5-1-698x373.jpg 698w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n<\/ol>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To sum up, fixing Outlook error 0x800CCC0B involves addressing potential connection issues. Start by checking your internet connection and meticulously verifying your Outlook SMTP settings. If the error persists and you suspect Outlook data file corruption, the Inbox Repair Tool (ScanPST.exe) can be helpful for minor issues. However, for major corruption or a more reliable solution, a professional Outlook PST Repair Tool is strongly suggested.<\/p>\n<p>We are here to assist you. If you have any further queries related to this recovery process or the tool, feel free to ask. Our 24\/7 technical support is available to resolve your query instantly and without hassle.<\/p>\n<h4 class=\"faq-main_heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span>Frequently Asked Questions (FAQs):-<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1751025523127\"><strong class=\"schema-faq-question\"><strong>Q1. Can incorrect SMTP settings cause Outlook error 0x800CCC0B?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> Yes. Wrong server names, incorrect port numbers, or improper encryption settings for your outgoing (SMTP) server frequently cause Outlook error 0x800CCC0B.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1751025564546\"><strong class=\"schema-faq-question\"><strong>Q2: What should I do if Outlook error 0x800CCC0B persists after trying all solutions?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> If the error persists despite trying all the troubleshooting steps, the Outlook data file (PST) itself is likely corrupted. In such a scenario, you must repair and recover data from the file. For a quick, precise, and highly accurate recovery, we recommend using the <strong>Aryson Outlook PST Repair Tool<\/strong>.<\/p> <\/div> <\/div>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2561&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;2&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (2 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;How to Fix Outlook Error 0x800CCC0B: The Complete Guide&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (2 votes)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Summary: Outlook error 0x800CCC0B indicates a connection problem between your Outlook application and your email server. This error prevents you<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/\">Read More<\/a><\/p>\n","protected":false},"author":5,"featured_media":2563,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2561","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-outlook"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Fix Outlook Error 0x800CCC0B: The Complete Guide<\/title>\n<meta name=\"description\" content=\"Resolve Outlook error 0x800CCC0B quickly and easily. 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He is an expert Email Forensic, Cloud Computing, and a passionate nerd with over 10 years of experience in technical content writing. He writes about Cloud Migration, Database Recovery, Email Backup, Windows, Mac, and Tech.\",\"url\":\"https:\\\/\\\/www.arysontechnologies.com\\\/how-to\\\/author\\\/rohan-wiese\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/how-to\\\/fix-outlook-error-0x800ccc0b\\\/#faq-question-1751025523127\",\"position\":1,\"url\":\"https:\\\/\\\/www.arysontechnologies.com\\\/how-to\\\/fix-outlook-error-0x800ccc0b\\\/#faq-question-1751025523127\",\"name\":\"Q1. Can incorrect SMTP settings cause Outlook error 0x800CCC0B?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans:<\\\/strong> Yes. Wrong server names, incorrect port numbers, or improper encryption settings for your outgoing (SMTP) server frequently cause Outlook error 0x800CCC0B.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/how-to\\\/fix-outlook-error-0x800ccc0b\\\/#faq-question-1751025564546\",\"position\":2,\"url\":\"https:\\\/\\\/www.arysontechnologies.com\\\/how-to\\\/fix-outlook-error-0x800ccc0b\\\/#faq-question-1751025564546\",\"name\":\"Q2: What should I do if Outlook error 0x800CCC0B persists after trying all solutions?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans:<\\\/strong> If the error persists despite trying all the troubleshooting steps, the Outlook data file (PST) itself is likely corrupted. In such a scenario, you must repair and recover data from the file. For a quick, precise, and highly accurate recovery, we recommend using the <strong>Aryson Outlook PST Repair Tool<\\\/strong>.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Fix Outlook Error 0x800CCC0B: The Complete Guide","description":"Resolve Outlook error 0x800CCC0B quickly and easily. Learn the best solutions to repair this common Outlook problem in a few simple steps.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/","og_locale":"en_US","og_type":"article","og_title":"How to Fix Outlook Error 0x800CCC0B: The Complete Guide","og_description":"Resolve Outlook error 0x800CCC0B quickly and easily. 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He is an expert Email Forensic, Cloud Computing, and a passionate nerd with over 10 years of experience in technical content writing. He writes about Cloud Migration, Database Recovery, Email Backup, Windows, Mac, and Tech.","url":"https:\/\/www.arysontechnologies.com\/how-to\/author\/rohan-wiese\/"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#faq-question-1751025523127","position":1,"url":"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#faq-question-1751025523127","name":"Q1. Can incorrect SMTP settings cause Outlook error 0x800CCC0B?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans:<\/strong> Yes. Wrong server names, incorrect port numbers, or improper encryption settings for your outgoing (SMTP) server frequently cause Outlook error 0x800CCC0B.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#faq-question-1751025564546","position":2,"url":"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-error-0x800ccc0b\/#faq-question-1751025564546","name":"Q2: What should I do if Outlook error 0x800CCC0B persists after trying all solutions?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans:<\/strong> If the error persists despite trying all the troubleshooting steps, the Outlook data file (PST) itself is likely corrupted. In such a scenario, you must repair and recover data from the file. For a quick, precise, and highly accurate recovery, we recommend using the <strong>Aryson Outlook PST Repair Tool<\/strong>.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/posts\/2561","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/comments?post=2561"}],"version-history":[{"count":2,"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/posts\/2561\/revisions"}],"predecessor-version":[{"id":2570,"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/posts\/2561\/revisions\/2570"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/media\/2563"}],"wp:attachment":[{"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/media?parent=2561"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/categories?post=2561"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/how-to\/wp-json\/wp\/v2\/tags?post=2561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}