{"id":18738,"date":"2025-08-11T06:02:21","date_gmt":"2025-08-11T06:02:21","guid":{"rendered":"https:\/\/www.sysinfotools.com\/blog\/?p=18738"},"modified":"2026-02-11T11:19:45","modified_gmt":"2026-02-11T11:19:45","slug":"migrate-public-folder-to-shared-mailbox","status":"publish","type":"post","link":"https:\/\/www.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/","title":{"rendered":"Best Solution to Migrate Public Folder to Shared Mailbox"},"content":{"rendered":"<div class=\"block_sum\">\n<p><strong>Summary:<\/strong> Whether you are an IT administrator managing a population of users that is ever-expanding, or simply managing mail. The ability to migrate Public Folder to Shared Mailbox is both timely and practical. When migrating public folders, you are transferring not only data but also permissions, structure, and user access. That is intact with zero data or service interruptions, paramount for a good experience and successful operation. Let\u2019s make this a little easier for you with relevant solutions, including an <a href=\"https:\/\/www.sysinfotools.com\/office365-backup.php\"><strong>Office 365 Backup Tool<\/strong><\/a>.<\/p>\n<div class=\"blog-btn\">\n<ul id=\"db-btn-container\" class=\"nav nav-tabs mt-4\" role=\"tablist\">\n<li class=\"nav-item\"><a id=\"windows-tab\" class=\"nav-link active\" role=\"tab\" href=\"#windows\" data-toggle=\"tab\" aria-controls=\"windows\" aria-selected=\"true\"><i class=\"icon-windows\"><\/i> Windows<\/a><\/li>\n<li class=\"nav-item\"><a id=\"mac-tab\" class=\"nav-link\" role=\"tab\" href=\"#mac\" data-toggle=\"tab\" aria-controls=\"mac\" aria-selected=\"false\"><i class=\"icon-apple\"><\/i> Mac<\/a><\/li>\n<\/ul>\n<div id=\"db-btn-containerContent\" class=\"tab-content my-2\">\n<div id=\"windows\" class=\"tab-pane fade active show\" role=\"tabpanel\" aria-labelledby=\"windows-tab\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/Sysinfo-Office-365-Backup-Tool_win.exe\"><i class=\"icon-windows\"><\/i> Download<\/a> <a class=\"sum-b-btn\" href=\"https:\/\/www.sysinfotools.com\/buynow\/office365-backup.php\" target=\"_blank\" rel=\"noopener\"><i class=\"icon icon-basket\"><\/i> Buy Now<\/a><\/div>\n<div id=\"mac\" class=\"tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"mac-tab\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/Sysinfo-Office-365-Backup-Tool-mac.dmg\"><i class=\"icon-apple\"><\/i> Download<\/a> <a class=\"sum-b-btn\" href=\"https:\/\/www.sysinfotools.com\/buynow\/mac-office365-backup.php\" target=\"_blank\" rel=\"noopener\"><i class=\"icon icon-basket\"><\/i> Buy Now<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>In the past, public folders were often a choice for sharing email, calendars, and contacts with other users in their organization. However, in a modern collaborative, cloud-based experience, public folders have served as a hindrance in many ways to users. Shared mailboxes are, instead, much more user-friendly, have adherence capabilities for compliance, and integrate very well in Office 365.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey 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: #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.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/#Convert_Public_Folder_to_Shared_Mailbox_Why\" >Convert Public Folder to Shared Mailbox: Why?<\/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.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/#Migrate_Public_Folder_to_Shared_Mailbox_Key_Considerations\" >Migrate Public Folder to Shared Mailbox: Key Considerations<\/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.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/#Move_Public_Folder_to_Shared_Mailbox_But_How\" >Move Public Folder to Shared Mailbox, But How?<\/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.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/#Free_Migrate_Public_Folder_to_Shared_Mailbox\" >Free Migrate Public Folder to Shared Mailbox<\/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.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/#Automatically_Migrate_Public_Folder_to_Shared_Mailbox\" >Automatically Migrate Public Folder to Shared Mailbox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Convert_Public_Folder_to_Shared_Mailbox_Why\"><\/span>Convert Public Folder to Shared Mailbox: Why?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are a lot of practical benefits to making or suggesting this transition from public folder back to shared mailbox:<\/p>\n<ul>\n<li><strong>Access Management Simplified:<\/strong> Shared mailboxes are now utilizing modern Office 365 groups, as opposed to legacy public folder permissions. The former are far easier to manage across users.<\/li>\n<li><strong>Operational Compatibility:<\/strong> There is better support for mobile devices as well as modern Outlook.<\/li>\n<li><strong>No Licensing Delay<\/strong>: Shared mailboxes under 50 GB do not require a separate license.<\/li>\n<li><strong>Retention and Holds:<\/strong> Microsoft 365 compliance guarantees retention and litigation hold capabilities.<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Migrate_Public_Folder_to_Shared_Mailbox_Key_Considerations\"><\/span>Migrate Public Folder to Shared Mailbox: Key Considerations<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Folder Size and Permission Complexity Matter<\/strong><\/p>\n<p>Before migration, review your public folder structure. Larger public folders (20+ GB) and folders with nested permissions often fail when manually exported.<\/p>\n<p>Use the <strong>Get-PublicFolderStatistics<\/strong> and <strong>Get-PublicFolderClientPermission cmdlets<\/strong> to assess the folder structure and review any potential permission collisions in advance.<\/p>\n<p>In addition, keep in mind:<\/p>\n<ul>\n<li>There is a 50 GB limit for shared mailboxes (this can be increased).<\/li>\n<li>Try not to grant full access permission to too many users to avoid sync conflicts.<\/li>\n<li>Always conduct a test with an unimportant folder before performing the entire migration.<\/li>\n<\/ul>\n<p>Finally, even if you are establishing hybrid migrations, merely transitioning from a legacy on-premises Exchange-based infrastructure. Or just streamlining your infrastructure, public folder to shared mailbox migration should be a very simple part of your process.<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Move_Public_Folder_to_Shared_Mailbox_But_How\"><\/span>Move Public Folder to Shared Mailbox, But How?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Everyone is stuck in the same loop of moving folders from one Office 365 mailbox folder to another. But not anymore, as this section elaborates on two top-notch solutions that make the migration quick, smooth, and effective. Here, find the manual and professional tool step-by-step guide and use them as per your requirements and availability.<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Free_Migrate_Public_Folder_to_Shared_Mailbox\"><\/span>Free Migrate Public Folder to Shared Mailbox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Microsoft Outlook has a supported method to follow using the Import\/Export wizard. We have divided it into two sections for a clearer understanding.<\/p>\n<h4 class=\"wp-block-heading\">Section 1: Export Data From Public Folders to .PST<\/h4>\n<p><strong>Note: <\/strong>Use Outlook attached to the <strong>on-prem Exchange<\/strong> to extract your data.<\/p>\n<ol>\n<li>Open <strong>Outlook<\/strong> using an account that has access to the public folders.<\/li>\n<li>Then, go to the <strong>Public Folders<\/strong> and right-click on the folder (or sub-folder) you want to migrate.<\/li>\n<li>After that, click <strong>Properties<\/strong> and make sure you have admin access to the data.<\/li>\n<li>Further, <strong>drag-and-drop<\/strong> the public folder to your <strong>mailbox&#8217;s folder list<\/strong> to create a copy. (Optional)<\/li>\n<li>Now, head to <strong>File<\/strong> to opt for <strong>Open and Export.<\/strong> And, to start the <strong>Import\/Export<\/strong>.<\/li>\n<li>Later, select <strong>Export to a file<\/strong> \u2013&gt; <strong>Outlook Data File (.pst). <\/strong>Click<strong> Next.<\/strong><\/li>\n<li>Finally, select the public folder and export to a <strong>.PST<\/strong> file. Tap <strong>Finish<\/strong>.<\/li>\n<\/ol>\n<h4 class=\"wp-block-heading\">Section 2: Import PST into Office 365 Shared Mailbox<\/h4>\n<ul>\n<li>First, make sure you have a <strong>Shared mailbox<\/strong> in <strong>Office 365<\/strong>.<\/li>\n<li>If you don&#8217;t, you can create one with <strong>Admin Center <\/strong>or <strong>PowerShell<\/strong> cmdlets.<\/li>\n<\/ul>\n<p>Further, to migrate Public Folder to Shared Mailbox, import the PST manually:<\/p>\n<ol>\n<li>Create an <strong>Outlook <\/strong>profile with your <strong>Office 365 <\/strong>account that has <strong>full access<\/strong> to the <strong>Shared Mailbox.<\/strong><\/li>\n<li>Later, open the <strong>Import\/Export <\/strong>wizard as done in the previous section.<\/li>\n<li>Choose <strong>Import from another program or file &gt;<\/strong>&gt; <strong>(.pst)<\/strong><\/li>\n<li>Afterward, click Next and point and select the <strong>PST<\/strong> exported above.<\/li>\n<li>Direct where to save in the<strong> Shared Mailbox<\/strong> (Inbox or custom folder). Hit <strong>Finish<\/strong>.<\/li>\n<\/ol>\n<p>You have completed the process to migrate public folders to Office 365 shared mailbox. But isn\u2019t it too tricky and complex? Yes, it is.<\/p>\n<p><strong>Other Drawbacks of the Manual Method<\/strong><\/p>\n<ul>\n<li>Confusing and doesn\u2019t support bulk migration of public mailbox folders.<\/li>\n<li>Users need to have admin privileges as well as an active Outlook profile with complete configuration.<\/li>\n<li>There is a high risk of data theft and corruption in this process.<\/li>\n<\/ul>\n<p>But any user can easily overcome these and perform a swift and hassle-free migration with a dedicated utility.<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Automatically_Migrate_Public_Folder_to_Shared_Mailbox\"><\/span>Automatically Migrate Public Folder to Shared Mailbox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When the manual process becomes challenging (especially for larger enterprise migrations), the best option is the <strong>SysInfo Office 365 Backup Tool<\/strong>. It allows you to migrate from public folders to shared mailboxes directly, while preserving permissions, folder structure, and timestamps. In addition, it&#8217;s useful for detailed migration reports and for handling errors, while maintaining security and compliance. Moreover, it is free of the system environment, i.e., ideal for both Mac and Windows.<\/p>\n<p><strong>Do You Know?<\/strong><\/p>\n<p>Apart from the ability to convert public folder to shared mailbox, this tool can <a href=\"https:\/\/www.sysinfotools.com\/blog\/export-office-365-to-csv\/\"><strong>export Office 365 to CSV<\/strong><\/a> and many other formats.<\/p>\n<p>To understand how it helps all technical and non-technical users, take a look at this case scenario:<\/p>\n<div class=\"p-4 mb-4\" style=\"border: 2px solid #005EFF; border-radius: 30px;\">\n<p><strong>Real Case<\/strong><em>\u201cWe had over 80 GB of public folder content with complex permission layers. Using the sysInfo Office 365 Email Backup Tool, we preserved every hierarchy level and mailbox mapping. What would have taken days manually was completed over the weekend with zero user complaints on Monday.\u201d <\/em>\u2014 IT Head, Delhi MNC<\/p>\n<\/div>\n<p><strong>Migrate Public Folders to Office 365 Shared Mailbox: Steps<\/strong><\/p>\n<ol>\n<li>Start the software and click <strong>Backup<\/strong> in the first dialog, then <strong>Continue<\/strong>.<\/li>\n<li>After that, using your admin credentials, click on the <strong>Sign In<\/strong> button.<\/li>\n<li>Then, select the <strong>Public Folder<\/strong> mailbox and choose the <strong>source ID<\/strong> to migrate.<\/li>\n<li>Click <strong>Next<\/strong> and check, and select folders after preview from the tree format.<\/li>\n<li>Further, press <strong>Next<\/strong> and select the <strong>Office 365<\/strong> email client from the menu.<\/li>\n<li><strong>Sign in<\/strong> again to your destination account, apply filters, and map users.<\/li>\n<li>At last, select the <strong>Shared Mailbox<\/strong> and press <strong>Convert<\/strong> to finish the process.<\/li>\n<\/ol>\n<p><strong>Explore More: <a href=\"https:\/\/www.sysinfotools.com\/blog\/export-public-folder-to-pst-file\/\">Export Public Folder to PST File<\/a><\/strong><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The ability to migrate public folder to shared mailbox is more than just a technical decision. It&#8217;s a decision to upgrade toward a flexible cloud-first communications solution. So, while manual methods will get by in smaller environments. Organizations that have broad regulatory, performance, or scale considerations would be better served with a professional tool.<\/p>\n<h4 class=\"faq_heading\">FAQ<\/h4>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1754890778102\"><strong class=\"schema-faq-question\">Q. Can I migrate public folders to shared mailboxes in Office 365 while preserving permissions?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans-<\/strong> Yes, but only with a professional Office 365 Mail Backup Tool. Manual methods won\u2019t retain permissions.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1754890989516\"><strong class=\"schema-faq-question\">Q. Can I automate the migration of many public folders to many shared mailboxes?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans-<\/strong> Yes. The tool, like Microsoft 365 Backup, which supports CSV-based mappings and auto-discovery, makes large-scale or multi-mailbox migration simple.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1754891004977\"><strong class=\"schema-faq-question\">Q. Can I delete public folders after the completion of my migration?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans-<\/strong> Of course, yes. When you migrate public folders to Office 365 shared mailbox with the Office 365 Backup &amp; Restore software, opt for the Free Server Space filter. It will free the public folder&#8217;s data after the migration completes.<\/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;18738&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;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;Best Solution to Migrate Public Folder to Shared Mailbox&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","protected":false},"excerpt":{"rendered":"<p>Summary: Whether you are an IT administrator managing a population of users that is ever-expanding, or simply managing mail. The<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.sysinfotools.com\/blog\/migrate-public-folder-to-shared-mailbox\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":18740,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[528],"tags":[],"class_list":["post-18738","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mail-management"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Best Solution to Migrate Public Folder to Shared Mailbox<\/title>\n<meta name=\"description\" content=\"Effortlessly migrate Public Folder to a Shared Mailbox in Office 365 with our easy step-by-step guide. 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