{"id":13281,"date":"2026-03-31T07:24:36","date_gmt":"2026-03-31T07:24:36","guid":{"rendered":"https:\/\/www.cigatisolutions.com\/blog\/?p=13281"},"modified":"2026-03-31T07:25:14","modified_gmt":"2026-03-31T07:25:14","slug":"migrate-squirrelmail-to-office-365","status":"publish","type":"post","link":"https:\/\/www.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/","title":{"rendered":"How Do I Migrate SquirrelMail to Office 365 Safely? Easy 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;13281&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 Do I Migrate SquirrelMail to Office 365 Safely? Easy 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\n<p>Enterprise-level organizations are moving away from traditional office-bound setups like those in SquirrelMail. The need of the hour is to move to a cloud-native architecture of Office 365 for a comprehensive digital workspace. But the next question that arises is how to migrate SquirrelMail to Office 365? The easiest approach is to use a specialized tool, the <strong>Cigati <a href=\"https:\/\/www.cigatisolutions.com\/imap-mail-backup\/\">IMAP Backup Tool<\/a><\/strong>. It directly migrates the SquirrelMail emails to Office 365 while ensuring that data remains intact.<\/p>\n\n\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-IMAP-Backup-win.exe\"><i class=\"icon-windows\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/imap-mail-backup\/purchase-now.php\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span>\n        <\/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-imap-backup-for-mac.dmg\"><i class=\"icon-apple\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/mac\/imap-backup\/purchase-now.php\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span>\n        <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n<p>Organizations migrate the SquirrelMail emails to Office 365 to modernize their email management system. They can perform this migration using the IMAP protocol and by using the Cigati IMAP Backup Tool.&nbsp;<\/p>\n\n\n\n<p><strong>Elodie Martin from France asks:<\/strong> \u201cI run a small business in France. We are planning to move from SquirrelMail to Microsoft 365 because we need better collaboration and security features. We have several user mailboxes with thousands of emails, attachments, and custom folders, so I am looking for a professional migration tool that can transfer all data without losing folder structure or metadata.\u201d<\/p>\n\n\n\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\" 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\/migrate-squirrelmail-to-office-365\/#What_is_the_Need_to_Migrate_Mail_from_SquirrelMail_to_Office_365\" >What is the Need to Migrate Mail from SquirrelMail to Office 365?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/#Top_Methods_to_Migrate_SquirrelMail_to_Office_365\" >Top Methods to Migrate SquirrelMail to Office 365&nbsp;<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/#Manually_Transfer_SquirrelMail_Emails_to_Office_365\" >Manually Transfer SquirrelMail Emails to Office 365<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/#Why_Manual_Solution_Fails_at_Enterprise-Scale\" >Why Manual Solution Fails at Enterprise-Scale?<\/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.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/#Easy_and_Direct_Solution_to_Migrate_SquirrelMail_to_Office_365\" >Easy and Direct Solution to Migrate SquirrelMail to Office 365&nbsp;<\/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.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/#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=\"What_is_the_Need_to_Migrate_Mail_from_SquirrelMail_to_Office_365\"><\/span>What is the Need to Migrate Mail from SquirrelMail to Office 365?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The primary need for the SquirrelMail-to-Office 365 migration is to migrate to a modern application with improved security. Take a look at the following points where this migration is needed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The unmaintained SquirrelMail software no longer receives updates and bug fixes, unlike Office 365, which regularly receives updates.&nbsp;<\/li>\n\n\n\n<li>There are security vulnerabilities with SquirrelMail as it does not keep pace with modern security risks. Office 365 provides advanced security protocols.&nbsp;<\/li>\n\n\n\n<li>Office 365 offers a suite of business tools, including productivity and collaborative tools.&nbsp;<\/li>\n\n\n\n<li>Microsoft guarantees 99.9% uptime under a financially backed SLA to maintain uninterrupted business operations.&nbsp;<\/li>\n\n\n\n<li>With Office 365, users can seamlessly access their mailboxes across devices and enjoy automatic email synchronization.&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Top_Methods_to_Migrate_SquirrelMail_to_Office_365\"><\/span>Top Methods to Migrate SquirrelMail to Office 365&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>After reviewing the needs of this email migration, let us now learn about the solutions. In this section, we have listed two solutions: a manual solution that uses IMAP and an automated solution that directly migrates emails.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Manually_Transfer_SquirrelMail_Emails_to_Office_365\"><\/span>Manually Transfer SquirrelMail Emails to Office 365<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>In this approach, we will first download all the mailbox data of SquirrelMail and then import it into Microsoft 365 as a PST file. It is an easy approach and is suitable for small-scale migrations.<\/p>\n\n\n\n<p>Use the following steps to begin the migration process:<\/p>\n\n\n\n<p><strong>Step 01: Export SquirrelMail Mailbox to a PST File<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>First, open <strong>Microsoft Outlook <\/strong>and add the <strong>SquirrelMail account<\/strong> via <strong>IMAP<\/strong>.&nbsp;<\/li>\n\n\n\n<li>Once the account is added, let it sync the data, and then review the email data.<\/li>\n\n\n\n<li>Now, head to the <strong>File<\/strong> menu tab and click on <strong>Open &amp; Export<\/strong> &gt; <strong>Import\/Export<\/strong>.<\/li>\n\n\n\n<li>After that, press <strong>Export to a file<\/strong> &gt; <strong>Outlook Data File (.pst)<\/strong> and choose the <strong>SquirrelMail mailbox<\/strong> to export.<\/li>\n\n\n\n<li>Then, pick a location to save the resultant PST file and hit the <strong>Finish<\/strong> button.&nbsp;<\/li>\n<\/ol>\n\n\n\n<p><strong>Step 02: Import the PST File into Office 365<\/strong>&nbsp;<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>In <strong>MS Outlook<\/strong>, navigate to<strong> File<\/strong> &gt; <strong>Add Account<\/strong> and enter the <strong>Office 365 account credentials.<\/strong><\/li>\n\n\n\n<li>Then, go to <strong>File<\/strong> &gt; <strong>Open &amp; Export<\/strong> &gt; <strong>Import\/Export<\/strong> &gt; <strong>Import from another program or file.<\/strong><\/li>\n\n\n\n<li>Next, select <strong>Outlook Data File (.pst)<\/strong> and choose the exported <strong>PST<\/strong> file.<\/li>\n\n\n\n<li>Pick the destination location as <strong>Office 365 mailbox<\/strong> and click on the <strong>Finish<\/strong> button.&nbsp;&nbsp;<\/li>\n<\/ol>\n\n\n\n<p><strong>Drawbacks:<\/strong> Large organizations have multiple user accounts with data that can\u2019t be migrated with this manual approach. It becomes unreliable for large datasets. Also, the contacts, tasks, calendars, and notes are not migrated.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Manual_Solution_Fails_at_Enterprise-Scale\"><\/span>Why Manual Solution Fails at Enterprise-Scale?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Generally, the manual process does not guarantee security and data privacy. When migrating at a large scale, it does require a professional solution. Below are a few reasons why manual processes fail in an enterprise organization:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The native IMAP migration can only handle a few mailboxes at a time. This makes it inefficient for organizations that have large datasets.<\/li>\n\n\n\n<li>Also, the manual migration process does not prevent the same message from appearing twice. It leads to duplication of emails.<\/li>\n\n\n\n<li>User\u2019s account credentials can get exposed while entering the details manually via the IMAP server.<\/li>\n\n\n\n<li>It takes a considerable amount of time while handling 1000 mailboxes at once. In this case, a dedicated tool is required.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Easy_and_Direct_Solution_to_Migrate_SquirrelMail_to_Office_365\"><\/span>Easy and Direct Solution to Migrate SquirrelMail to Office 365&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The <strong>Cigati IMAP Backup Tool<\/strong> is especially designed for IT administrators and enterprise architects. It efficiently migrates the SquirrelMail emails to Office 365 by preserving folder structure. Also, it maintains the metadata fidelity and operates at scale. This tool supports date-range scoped migrations, deduplication for cleaner archives, and post-backup server deletion. Furthermore, it makes sure to preserve the original email formatting.&nbsp;<\/p>\n\n\n\n<p><strong>Simple steps to perform SquirrelMail to Office 365 migration:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Download and launch the tool on your system. Then, hit <strong>Continue<\/strong>.<\/li>\n\n\n\n<li>After that, choose from the <strong>Single<\/strong> or <strong>Batch<\/strong> mode and then <strong>log in<\/strong> to your <strong>SquirrelMail<\/strong> account.&nbsp;<\/li>\n\n\n\n<li>Now, select the folders you wish to migrate and click on the<strong> Next<\/strong> button.&nbsp;<\/li>\n\n\n\n<li>Next, pick <strong>Email Clients<\/strong> as <strong>Office 365<\/strong> &gt; <strong>Use modern authentication (recommended)<\/strong>. Click <strong>Next<\/strong> again.<\/li>\n\n\n\n<li>Provide your<strong> Office 365 email ID<\/strong> and again press <strong>Next<\/strong>.<\/li>\n\n\n\n<li>Apply the filters if required and click on the <strong>Start Process<\/strong> button.&nbsp;<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>The SquirrelMail emails to Office 365 email migration is a strategic move for improved collaboration and better security. The manual IMAP migration is not considered trivial at a large scale to migrate SquirrelMail to Office 365. Hence, an automated tool, the <strong>Cigati IMAP Backup Tool<\/strong>, is the best utility for large-scale migrations. Also, this tool offers efficient, error-free, and hassle-free results. It is suitable for both beginners and non-technical audiences as well.<\/p>\n\n\n\n<p><strong>You May Also Read:\u00a0<\/strong><a href=\"https:\/\/www.cigatisolutions.com\/blog\/transfer-horde-email-to-gmail\/\">Transfer Horde Email to Gmail<\/a><\/p>\n\n\n\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\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1774941286221\"><strong class=\"schema-faq-question\">Q: How are large mailboxes or high-volume emails handled during migration?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> The high-volume emails are migrated with the help of a professional tool that supports bulk processing. IT teams can also pick the date range filter to filter out the important emails to be migrated.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1774941319372\"><strong class=\"schema-faq-question\">Q: Why should SMEs and large businesses consider migrating from SquirrelMail to Office 365?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> SquirrelMail comes with limited security patches and with no modern productivity tools. On the other hand, Office 365 offers professional-grade security and seamless integration of a suite of productivity tools. It also guarantees uptime SLA, making it suitable for modern organizations.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Enterprise-level organizations are moving away from traditional office-bound setups like those in SquirrelMail. The need of the hour is to<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.cigatisolutions.com\/blog\/migrate-squirrelmail-to-office-365\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":13282,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-13281","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 v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Do I Migrate SquirrelMail to Office 365 Safely? Easy Guide<\/title>\n<meta name=\"description\" content=\"A complete guide to migrate SquirrelMail to Office 365. Transfer emails, attachments, and data quickly and securely.\" \/>\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\/migrate-squirrelmail-to-office-365\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Do I Migrate SquirrelMail to Office 365 Safely? Easy Guide\" \/>\n<meta property=\"og:description\" content=\"A complete guide to migrate SquirrelMail to Office 365. 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