{"id":379,"date":"2026-10-05T07:43:55","date_gmt":"2026-10-05T07:43:55","guid":{"rendered":"https:\/\/cigatisolutions.com\/blog\/?p=379"},"modified":"2026-10-05T07:43:57","modified_gmt":"2026-10-05T07:43:57","slug":"convert-mbox-to-pst-file","status":"publish","type":"post","link":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/","title":{"rendered":"How to Convert MBOX Files to PST: Complete 2026 Guide"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;379&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&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 - (1 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;How to Convert MBOX Files to PST: Complete 2026 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 - (1 vote)    <\/div>\n    <\/div>\n<div class=\"migrate-btn-n my-4\">\n<p>Outlook cannot open an MBOX file. When you double-click one you might see an error message or a prompt asking you to pick another program. If your email history is stored in Thunderbird, Apple Mail or a Google Takeout archive the only way to get it into Outlook is to convert the MBOX files into PST format. That is the format Outlook uses for its data files.<\/p>\n<p>This guide shows three ways to convert MBOX files to PST: a method using Thunderbird, an IMAP relay approach &amp; the <a href=\"https:\/\/www.cigatisolutions.com\/mbox-converter\/\" target=\"_blank\" rel=\"noopener\"><strong>Cigati MBOX Converter<\/strong><\/a>. It also points out where each method tends to fail so you can choose the one before you begin\u2014instead of running into problems halfway through.<\/p>\n<div class=\"row justify-content-center mac-win-tab mt-3 mb-5\">\n<div class=\"col-md-6\">\n<ul id=\"myTab\" class=\"nav nav-tabs justify-content-center\" role=\"tablist\">\n<li class=\"nav-item\" role=\"presentation\"><button id=\"home-tab\" class=\"nav-link bg-transparent px-4 active\" role=\"tab\" type=\"button\" data-toggle=\"tab\" data-target=\"#home\" aria-controls=\"home\" aria-selected=\"true\"><i class=\"icon-windows\"><\/i> Windows<\/button><\/li>\n<li class=\"nav-item\" role=\"presentation\"><button id=\"profile-tab\" class=\"nav-link bg-transparent px-4\" role=\"tab\" type=\"button\" data-toggle=\"tab\" data-target=\"#profile\" aria-controls=\"profile\" aria-selected=\"false\"><i class=\"icon-apple\"><\/i>Mac<\/button><\/li>\n<\/ul>\n<div id=\"myTabContent\" class=\"tab-content\">\n<div id=\"home\" class=\"tab-pane fade active show\" role=\"tabpanel\" aria-labelledby=\"home-tab\"><span class=\"block_btn\"><a class=\"primary-btn\" href=\"https:\/\/www.cigatisolutions.com\/demo-version\/Cigati-MBOX-File-Converter-windows.exe\" rel=\"nofollow\"><i class=\"icon-windows\"><\/i> Download Now<\/a>\u00a0\u00a0<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/mbox-converter\/purchase-now.php\" target=\"_blank\" rel=\"nofollow noopener\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span><\/div>\n<div id=\"profile\" class=\"tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"profile-tab\"><span class=\"block_btn\"><a class=\"primary-btn\" href=\"https:\/\/www.cigatisolutions.com\/demo-version\/Cigati-MBOX-File-Converter-for-mac.dmg\" rel=\"nofollow\"><i class=\"icon-apple\"><\/i> Download Now<\/a>\u00a0\u00a0<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/mac\/mbox-converter\/purchase-now.php\" target=\"_blank\" rel=\"nofollow noopener\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"case-study-n my-3\">\n<p><strong>Quick answer<\/strong>: For a number of emails-say, a few hundred\u2014the Thunderbird-to-EML method works fine and costs nothing. If you have several gigabytes of data many folders or a tight deadline go with a <b>Cigati MBOX Converter<\/b>. It reads the files directly. Keeps your folder structure exactly as it was.<\/p>\n<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\" style=\"cursor:inherit\">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 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#MBOX_vs_PST_what_youre_actually_converting\" >MBOX vs PST: what you&#8217;re actually converting<\/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.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Why_convert_MBOX_to_Outlook_PST\" >Why convert MBOX to Outlook PST?<\/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.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Prerequisites_Convert_MBOX_to_PST_File\" >Prerequisites: Convert MBOX to PST File<\/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.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Method_01_Convert_MBOX_to_PST_free_with_Thunderbird_Outlook\" >Method 01: Convert MBOX to PST free with Thunderbird &amp; Outlook<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Where_this_method_breaks_down\" >Where this method breaks down<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Method_2_Convert_MBOX_File_to_PST_using_an_IMAP_account\" >Method 2: Convert MBOX File to PST using an IMAP account<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Method_3_Use_the_Cigati_MBOX_Converter_for_direct_conversion\" >Method 3: Use the Cigati MBOX Converter for direct conversion<\/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.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Which_method_should_you_choose_when_Export_MBOX_to_PST\" >Which method should you choose when Export MBOX to PST?<\/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.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Source-specific_notes\" >Source-specific notes<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Conclusion\" >Conclusion<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><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.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"MBOX_vs_PST_what_youre_actually_converting\"><\/span>MBOX vs PST: what you&#8217;re actually converting<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">An <\/span><b>MBOX file is plain text<\/b><span style=\"font-weight: 400;\">. Every message in a folder is stored one after another, and each begins with a line starting with &#8220;<\/span><b>From<\/b><span style=\"font-weight: 400;\"> &#8220;. The format has no folders inside the file, &amp; it doesn&#8217;t store calendars, contacts, or tasks. More than 20 email clients use it, which include <\/span><b>Thunderbird, Apple Mail, Eudora, Postbox, SeaMonkey, &amp; Opera Mail<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A <\/span><b>PST is a structured database<\/b><span style=\"font-weight: 400;\">. It holds folders, messages, attachments, contacts, calendar entries, and tasks, &amp; Outlook reads it natively. Modern Unicode PST files can reach 50 GB by default. Older ANSI PST files stop at 2 GB.<\/span><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_convert_MBOX_to_Outlook_PST\"><\/span>Why convert MBOX to Outlook PST?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The company or your own workflow now runs on Outlook &amp; Microsoft 365.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Old mail in a Thunderbird profile is hard to search alongside current mail.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Google Takeout delivers MBOX, which Outlook won&#8217;t read.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PST files can be copied, archived, and re-attached to Outlook on another machine.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mail from several people or old machines needs to end up in one format.<\/span><\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Prerequisites_Convert_MBOX_to_PST_File\"><\/span>Prerequisites: Convert MBOX to PST File<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Copy <\/b><span style=\"font-weight: 400;\">the MBOX files first.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Check <\/b><span style=\"font-weight: 400;\">free disk space.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Extract <\/b><span style=\"font-weight: 400;\">Takeout archives.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Close <\/b><span style=\"font-weight: 400;\">Thunderbird or Apple Mail before copying their mailbox files, or they may be incomplete.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Use classic Outlook<\/b><span style=\"font-weight: 400;\"> for the manual steps. The &#8220;<\/span><b>New Outlook<\/b><span style=\"font-weight: 400;\">&#8221; for Windows doesn&#8217;t offer the same local PST export options. Microsoft changes this periodically, so check its current documentation if you&#8217;re on the new app. [<\/span><a href=\"https:\/\/support.microsoft.com\/en-us\/outlook\/import-email-contacts-and-calendar-from-an-outlook-pst-file\" target=\"_blank\" rel=\"noopener\"><b>Microsoft<\/b><\/a><span style=\"font-weight: 400;\">]<\/span><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_01_Convert_MBOX_to_PST_free_with_Thunderbird_Outlook\"><\/span>Method 01: Convert MBOX to PST free with Thunderbird &amp; Outlook<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">This is the manual route. It works when you have a modest amount of mail and both Thunderbird and classic Outlook installed.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Where_this_method_breaks_down\"><\/span><span style=\"font-weight: 400;\">Where this method breaks down<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Subfolder hierarchy has to be <\/span><b>rebuilt <\/b><span style=\"font-weight: 400;\">by hand.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Large batches can stall or <\/span><b>leave Outlook unresponsive<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Some message properties, such as certain headers &amp; original dates on odd messages, may <\/span><b>not carry over cleanly<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It&#8217;s slow past a few thousand messages, and a crash means starting that folder again.<\/span><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_2_Convert_MBOX_File_to_PST_using_an_IMAP_account\"><\/span>Method 2: Convert MBOX File to PST using an IMAP account<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The plan is to send your emails to a mail server using Thunderbird and then download them into Outlook.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This method keeps your folder structure the same which&#8217;s helpful. It needs a steady internet connection.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Also email providers often limit how data you can upload or download each day.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If you have an archive the process might take several days.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the sync stops unexpectedly you could end up with messages.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">With Gmail there&#8217;s an issue: labels become folders.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">So if one email has three labels it will appear three times in your inbox.<\/span><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_3_Use_the_Cigati_MBOX_Converter_for_direct_conversion\"><\/span>Method 3: Use the Cigati MBOX Converter for direct conversion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">When volume, folder accuracy, or time matter, a dedicated tool is the more dependable route. The <\/span><b>Cigati MBOX Converter<\/b><span style=\"font-weight: 400;\"> reads MBOX files directly, with no EML detour &amp; no server in the middle. It supports <\/span><b>Windows and Mac<\/b><span style=\"font-weight: 400;\">, and it can <\/span><a href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-eml\/\" target=\"_blank\" rel=\"noopener\"><b>convert MBOX to EML<\/b><\/a><span style=\"font-weight: 400;\">, MSG, PDF, DOC and other formats from the same interface. Understand the features Ciati MBOX Converter provides:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The user can <\/span><b>export MBOX files to Microsoft 365, Google Workspace, IMAP<\/b><span style=\"font-weight: 400;\"> and other email clients.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It offers a <\/span><b>Date filter<\/b><span style=\"font-weight: 400;\"> for specific data conversion within a given date range.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You can give a <\/span><b>custom name<\/b><span style=\"font-weight: 400;\"> to the folders of your choice.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It can <\/span><b>split MBOX files<\/b><span style=\"font-weight: 400;\"> with file size limit or <\/span><b>merge them into Single MBOX files<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The software for downloading is also available on the <\/span><a href=\"https:\/\/apps.microsoft.com\/detail\/xpfmnh8frlhkw8?referrer=appbadge&amp;mode=full\" target=\"_blank\" rel=\"noopener\"><b>Microsoft App Store<\/b><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<\/ul>\n<p><b><i>Notes:<\/i><\/b><span style=\"font-weight: 400;\"> When it finishes, you can <\/span><a href=\"https:\/\/www.cigatisolutions.com\/blog\/open-mbox-file-in-outlook\/\" target=\"_blank\" rel=\"noopener\"><b>open MBOX files in Outlook<\/b><\/a><span style=\"font-weight: 400;\"> by attaching the new PST through <\/span><b>File &gt;&gt; Open &amp; Export &gt;&gt; Open Outlook Data File<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_method_should_you_choose_when_Export_MBOX_to_PST\"><\/span>Which method should you choose when Export MBOX to PST?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table style=\"border-collapse: collapse; margin: 20px auto; text-align: left; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"border: 1px solid #000; padding: 10px;\"><strong>Features<\/strong><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Thunderbird + EML<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>IMAP relay<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Dedicated Converter<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Cost<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Free<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Free<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Paid (demo available)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Best for<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">A few folders<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Small to medium mailboxes<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Large or bulk conversions<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Folder structure<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Manual rebuild<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Mostly preserved<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Preserved<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Speed<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Slow<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Depends on bandwidth<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Fast<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Needs two apps installed<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Yes<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Yes<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">No<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 10px;\"><b>Risk of duplicates<\/b><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><strong><span style=\"font-weight: 400;\">Low<\/span><\/strong><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">High with Gmail labels<\/span><\/td>\n<td style=\"border: 1px solid #000; padding: 10px;\"><span style=\"font-weight: 400;\">Low<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Source-specific_notes\"><\/span>Source-specific notes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Thunderbird<\/b><span style=\"font-weight: 400;\">: Mailbox files do not have any file extension. Subfolders are stored in directories that end with.sbd and.msf files are index files. If you copy the top-level mailbox file the subfolders will not be included. That&#8217;s the common reason why folders disappear after a move. To avoid this copy the Mail or IMAPMail directory for the account.<\/span><\/p>\n<p><b>Apple Mail<\/b><span style=\"font-weight: 400;\">: Go to Mailbox &gt;&gt; Export Mailbox. Apple Mail will create a folder with a.mbox extension. Inside this folder is the message file. Make sure to point your converter to this folder or the .mbox file. Do not use the ~\/Library\/Mail directory as it may cause confusion.<\/span><\/p>\n<p><b>Google Takeout (Gmail)<\/b><span style=\"font-weight: 400;\">: When you select Mail in Takeout you get one MBOX file for each label usually packaged in a ZIP or TGZ file. Since Gmail labels are not the same as folders a single message, with labels will appear in each corresponding MBOX file. This leads to duplicates so you should plan to remove duplicates especially when using Outlook. Large exports are split into archives so download all the parts before you begin processing.<\/span><\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Converting MBOX to PST comes down to how much mail you have &#038; how much risk you can tolerate. The Thunderbird-to-EML route costs nothing &#038; suits a small archive. The IMAP relay saves effort on folders but depends on your connection and can leave duplicates. For bulk files and batch conversion, a direct MBOX to PST converter like Cigati&#8217;s is the safer choice.<\/p>\n<div class=\"faq-n my-4\">\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<div class=\"schema-faq wp-block-yoast-faq-block\">\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1791185953698\"><strong class=\"schema-faq-question\"><strong>Q1. Is there a way to convert MBOX to PST?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans.<\/strong> Yes. You can import the MBOX into Thunderbird export the emails as EML files then drag those EML files into Outlook &amp; save the folder as a PST. This method is free. It can be slow and not reliable for large mailboxes. Also Cigati MBOX Converter offers a version that lets you test the software and convert up to 50 items per folder.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791185965417\"><strong class=\"schema-faq-question\"><strong>Q2. Why are my attachments missing after conversion?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans.<\/strong> Common reasons are a damaged or incomplete MBOX file, a failed EML export or a converter that doesn\u2019t properly handle MIME multipart messages. Always check the original MBOX file first before you use a viewer then try the conversion.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791185978089\"><strong class=\"schema-faq-question\"><strong>Q3. What is the maximum size of a PST file?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans<\/strong>. Unicode PST files usually have a limit of 50 GB. Legacy ANSI PST files are capped at 2 GB. To keep things running smoothly it&#8217;s best to stay below these limits &amp; split large archives into smaller PST files.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791185987698\"><strong class=\"schema-faq-question\"><strong>Q4. Will the folder structure stay intact?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans.<\/strong> A direct conversion tool usually preserves the folder structure. But with methods the hierarchy may get lost, especially for subfolders in Thunderbird.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791185999537\"><strong class=\"schema-faq-question\"><strong>Q5. Does MBOX hold contacts and calendars?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans.<\/strong> No. MBOX files store email. Contacts and calendars must be exported separately\u2014like as vCard files and ICS files\u2014. Then imported into Outlook.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791186014186\"><strong class=\"schema-faq-question\"><strong>Q6. Can I import the PST into Microsoft 365 or the New Outlook?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans.<\/strong> Yes. In the version of Outlook you can open the PST and copy the folders into your Microsoft 365 mailbox. The New Outlook has limited support for importing PST files and this support keeps changing so always check the instructions, from Microsoft.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1791186025299\"><strong class=\"schema-faq-question\"><strong>Q7. How do I fix a PST that won&#8217;t open after conversion?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans<\/strong>. Run SCANPST.EXE to repair the file then try opening it. If it still won\u2019t work the original MBOX file might be damaged, so try converting from a clean copy.<\/p> <\/div> <\/div>\n<\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>Outlook cannot open an MBOX file. When you double-click one you might see an error message or a prompt asking<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/\">Read More<\/a><\/p>\n","protected":false},"author":16,"featured_media":14256,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-379","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-email-management-migration"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Convert MBOX Files to PST: Complete Guide<\/title>\n<meta name=\"description\" content=\"Learn how to convert MBOX files to PST with reliable methods while preserving emails, attachments, folder structure, and other mailbox data.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convert MBOX Files to PST: Complete Guide\" \/>\n<meta property=\"og:description\" content=\"Learn how to convert MBOX files to PST with reliable methods while preserving emails, attachments, folder structure, and other mailbox data.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/\" \/>\n<meta property=\"og:site_name\" content=\"Cigati Solutions Blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-05T07:43:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-05T07:43:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2026\/05\/convert-mbox-to-pst-1-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"698\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Khushboo Maurya\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Khushboo Maurya\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/\"},\"author\":{\"name\":\"Khushboo Maurya\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#\\\/schema\\\/person\\\/6314bdc9922fc7e2743043a2d95ee2d1\"},\"headline\":\"How to Convert MBOX Files to PST: Complete 2026 Guide\",\"datePublished\":\"2026-10-05T07:43:55+00:00\",\"dateModified\":\"2026-10-05T07:43:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/\"},\"wordCount\":1441,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/convert-mbox-to-pst-1-1.png\",\"articleSection\":[\"Email Management &amp; Migration\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#respond\"]}]},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/\",\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/\",\"name\":\"Convert MBOX Files to PST: Complete Guide\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/convert-mbox-to-pst-1-1.png\",\"datePublished\":\"2026-10-05T07:43:55+00:00\",\"dateModified\":\"2026-10-05T07:43:57+00:00\",\"description\":\"Learn how to convert MBOX files to PST with reliable methods while preserving emails, attachments, folder structure, and other mailbox data.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185953698\"},{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185965417\"},{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185978089\"},{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185987698\"},{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185999537\"},{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791186014186\"},{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791186025299\"}],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/convert-mbox-to-pst-1-1.png\",\"contentUrl\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/convert-mbox-to-pst-1-1.png\",\"width\":698,\"height\":400,\"caption\":\"Convert MBOX to PST\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Convert MBOX Files to PST: Complete 2026 Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/\",\"name\":\"Cigati Solutions Blog\",\"description\":\"Technical Tips &amp; Tricks of Data Migration\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#organization\",\"name\":\"Cigati Solutions Blog\",\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/12\\\/cropped-cropped-cropped-cropped-cropped-cropped-logo_t-1.png\",\"contentUrl\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/12\\\/cropped-cropped-cropped-cropped-cropped-cropped-logo_t-1.png\",\"width\":182,\"height\":72,\"caption\":\"Cigati Solutions Blog\"},\"image\":{\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/#\\\/schema\\\/person\\\/6314bdc9922fc7e2743043a2d95ee2d1\",\"name\":\"Khushboo Maurya\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4fb3b1b1b4a0e706842c88a6dd6ae579c3828b27b678e7711128ab17f985ebad?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4fb3b1b1b4a0e706842c88a6dd6ae579c3828b27b678e7711128ab17f985ebad?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4fb3b1b1b4a0e706842c88a6dd6ae579c3828b27b678e7711128ab17f985ebad?s=96&d=mm&r=g\",\"caption\":\"Khushboo Maurya\"},\"description\":\"Khushboo Maurya is a digital content and SEO professional focused on creating useful, search-friendly content that connects with the right audience. She specializes in content optimization, website growth, and practical SEO strategies that improve visibility, engagement, and organic reach.\",\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/author\\\/khushi123\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185953698\",\"position\":1,\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185953698\",\"name\":\"Q1. Is there a way to convert MBOX to PST?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans.<\\\/strong> Yes. You can import the MBOX into Thunderbird export the emails as EML files then drag those EML files into Outlook &amp; save the folder as a PST. This method is free. It can be slow and not reliable for large mailboxes. Also Cigati MBOX Converter offers a version that lets you test the software and convert up to 50 items per folder.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185965417\",\"position\":2,\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185965417\",\"name\":\"Q2. Why are my attachments missing after conversion?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans.<\\\/strong> Common reasons are a damaged or incomplete MBOX file, a failed EML export or a converter that doesn\u2019t properly handle MIME multipart messages. Always check the original MBOX file first before you use a viewer then try the conversion.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185978089\",\"position\":3,\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185978089\",\"name\":\"Q3. What is the maximum size of a PST file?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans<\\\/strong>. Unicode PST files usually have a limit of 50 GB. Legacy ANSI PST files are capped at 2 GB. To keep things running smoothly it's best to stay below these limits &amp; split large archives into smaller PST files.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185987698\",\"position\":4,\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185987698\",\"name\":\"Q4. Will the folder structure stay intact?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans.<\\\/strong> A direct conversion tool usually preserves the folder structure. But with methods the hierarchy may get lost, especially for subfolders in Thunderbird.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185999537\",\"position\":5,\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791185999537\",\"name\":\"Q5. Does MBOX hold contacts and calendars?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans.<\\\/strong> No. MBOX files store email. Contacts and calendars must be exported separately\u2014like as vCard files and ICS files\u2014. Then imported into Outlook.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791186014186\",\"position\":6,\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791186014186\",\"name\":\"Q6. Can I import the PST into Microsoft 365 or the New Outlook?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans.<\\\/strong> Yes. In the version of Outlook you can open the PST and copy the folders into your Microsoft 365 mailbox. The New Outlook has limited support for importing PST files and this support keeps changing so always check the instructions, from Microsoft.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791186025299\",\"position\":7,\"url\":\"https:\\\/\\\/www.cigatisolutions.com\\\/blog\\\/convert-mbox-to-pst-file\\\/#faq-question-1791186025299\",\"name\":\"Q7. How do I fix a PST that won't open after conversion?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans<\\\/strong>. Run SCANPST.EXE to repair the file then try opening it. If it still won\u2019t work the original MBOX file might be damaged, so try converting from a clean copy.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Convert MBOX Files to PST: Complete Guide","description":"Learn how to convert MBOX files to PST with reliable methods while preserving emails, attachments, folder structure, and other mailbox data.","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.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/","og_locale":"en_US","og_type":"article","og_title":"Convert MBOX Files to PST: Complete Guide","og_description":"Learn how to convert MBOX files to PST with reliable methods while preserving emails, attachments, folder structure, and other mailbox data.","og_url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/","og_site_name":"Cigati Solutions Blog","article_published_time":"2026-10-05T07:43:55+00:00","article_modified_time":"2026-10-05T07:43:57+00:00","og_image":[{"width":698,"height":400,"url":"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2026\/05\/convert-mbox-to-pst-1-1.png","type":"image\/png"}],"author":"Khushboo Maurya","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Khushboo Maurya","Est. reading time":"7 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#article","isPartOf":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/"},"author":{"name":"Khushboo Maurya","@id":"https:\/\/www.cigatisolutions.com\/blog\/#\/schema\/person\/6314bdc9922fc7e2743043a2d95ee2d1"},"headline":"How to Convert MBOX Files to PST: Complete 2026 Guide","datePublished":"2026-10-05T07:43:55+00:00","dateModified":"2026-10-05T07:43:57+00:00","mainEntityOfPage":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/"},"wordCount":1441,"commentCount":0,"publisher":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#primaryimage"},"thumbnailUrl":"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2026\/05\/convert-mbox-to-pst-1-1.png","articleSection":["Email Management &amp; Migration"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#respond"]}]},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/","url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/","name":"Convert MBOX Files to PST: Complete Guide","isPartOf":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#primaryimage"},"image":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#primaryimage"},"thumbnailUrl":"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2026\/05\/convert-mbox-to-pst-1-1.png","datePublished":"2026-10-05T07:43:55+00:00","dateModified":"2026-10-05T07:43:57+00:00","description":"Learn how to convert MBOX files to PST with reliable methods while preserving emails, attachments, folder structure, and other mailbox data.","breadcrumb":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185953698"},{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185965417"},{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185978089"},{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185987698"},{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185999537"},{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791186014186"},{"@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791186025299"}],"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#primaryimage","url":"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2026\/05\/convert-mbox-to-pst-1-1.png","contentUrl":"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2026\/05\/convert-mbox-to-pst-1-1.png","width":698,"height":400,"caption":"Convert MBOX to PST"},{"@type":"BreadcrumbList","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.cigatisolutions.com\/blog\/"},{"@type":"ListItem","position":2,"name":"How to Convert MBOX Files to PST: Complete 2026 Guide"}]},{"@type":"WebSite","@id":"https:\/\/www.cigatisolutions.com\/blog\/#website","url":"https:\/\/www.cigatisolutions.com\/blog\/","name":"Cigati Solutions Blog","description":"Technical Tips &amp; Tricks of Data Migration","publisher":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.cigatisolutions.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.cigatisolutions.com\/blog\/#organization","name":"Cigati Solutions Blog","url":"https:\/\/www.cigatisolutions.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.cigatisolutions.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2018\/12\/cropped-cropped-cropped-cropped-cropped-cropped-logo_t-1.png","contentUrl":"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2018\/12\/cropped-cropped-cropped-cropped-cropped-cropped-logo_t-1.png","width":182,"height":72,"caption":"Cigati Solutions Blog"},"image":{"@id":"https:\/\/www.cigatisolutions.com\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.cigatisolutions.com\/blog\/#\/schema\/person\/6314bdc9922fc7e2743043a2d95ee2d1","name":"Khushboo Maurya","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/4fb3b1b1b4a0e706842c88a6dd6ae579c3828b27b678e7711128ab17f985ebad?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4fb3b1b1b4a0e706842c88a6dd6ae579c3828b27b678e7711128ab17f985ebad?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4fb3b1b1b4a0e706842c88a6dd6ae579c3828b27b678e7711128ab17f985ebad?s=96&d=mm&r=g","caption":"Khushboo Maurya"},"description":"Khushboo Maurya is a digital content and SEO professional focused on creating useful, search-friendly content that connects with the right audience. She specializes in content optimization, website growth, and practical SEO strategies that improve visibility, engagement, and organic reach.","url":"https:\/\/www.cigatisolutions.com\/blog\/author\/khushi123\/"},{"@type":"Question","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185953698","position":1,"url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185953698","name":"Q1. Is there a way to convert MBOX to PST?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans.<\/strong> Yes. You can import the MBOX into Thunderbird export the emails as EML files then drag those EML files into Outlook &amp; save the folder as a PST. This method is free. It can be slow and not reliable for large mailboxes. Also Cigati MBOX Converter offers a version that lets you test the software and convert up to 50 items per folder.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185965417","position":2,"url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185965417","name":"Q2. Why are my attachments missing after conversion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans.<\/strong> Common reasons are a damaged or incomplete MBOX file, a failed EML export or a converter that doesn\u2019t properly handle MIME multipart messages. Always check the original MBOX file first before you use a viewer then try the conversion.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185978089","position":3,"url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185978089","name":"Q3. What is the maximum size of a PST file?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans<\/strong>. Unicode PST files usually have a limit of 50 GB. Legacy ANSI PST files are capped at 2 GB. To keep things running smoothly it's best to stay below these limits &amp; split large archives into smaller PST files.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185987698","position":4,"url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185987698","name":"Q4. Will the folder structure stay intact?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans.<\/strong> A direct conversion tool usually preserves the folder structure. But with methods the hierarchy may get lost, especially for subfolders in Thunderbird.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185999537","position":5,"url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791185999537","name":"Q5. Does MBOX hold contacts and calendars?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans.<\/strong> No. MBOX files store email. Contacts and calendars must be exported separately\u2014like as vCard files and ICS files\u2014. Then imported into Outlook.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791186014186","position":6,"url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791186014186","name":"Q6. Can I import the PST into Microsoft 365 or the New Outlook?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans.<\/strong> Yes. In the version of Outlook you can open the PST and copy the folders into your Microsoft 365 mailbox. The New Outlook has limited support for importing PST files and this support keeps changing so always check the instructions, from Microsoft.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791186025299","position":7,"url":"https:\/\/www.cigatisolutions.com\/blog\/convert-mbox-to-pst-file\/#faq-question-1791186025299","name":"Q7. How do I fix a PST that won't open after conversion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans<\/strong>. Run SCANPST.EXE to repair the file then try opening it. If it still won\u2019t work the original MBOX file might be damaged, so try converting from a clean copy.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/posts\/379","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/comments?post=379"}],"version-history":[{"count":20,"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/posts\/379\/revisions"}],"predecessor-version":[{"id":14260,"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/posts\/379\/revisions\/14260"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/media\/14256"}],"wp:attachment":[{"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/media?parent=379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/categories?post=379"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cigatisolutions.com\/blog\/wp-json\/wp\/v2\/tags?post=379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}