{"id":3522,"date":"2022-12-23T12:52:33","date_gmt":"2022-12-23T12:52:33","guid":{"rendered":"https:\/\/www.arysontechnologies.com\/blog\/?p=3522"},"modified":"2026-07-13T10:03:26","modified_gmt":"2026-07-13T10:03:26","slug":"reduce-outlook-mailbox-size-in-easy-steps","status":"publish","type":"post","link":"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/","title":{"rendered":"How to Reduce Outlook Mailbox Size Without Deleting in Easy Steps"},"content":{"rendered":"<p class=\"block_sum\"><em><strong>Summary: <\/strong> This detailed write-up will guide you through the solutions to reduce Outlook mailbox size without deleting any data. We will explain easy-to-perform methods so that you can solve all your problems regarding large and complex Outlook mailbox sizes. There is also a professional solution that consists of an optimum <a href=\"https:\/\/www.arysontechnologies.com\/compress-outlook-pst\/\"><strong>PST Compress software<\/strong><\/a> so that you can shift to the automated approach if you face any difficulty while performing the manual methods.<\/em><span class=\"block_btn\"><a class=\"custom-download-btn\" href=\"https:\/\/www.arysontechnologies.com\/demo-version\/Aryson-PST-Compress-Tool_win.exe\"><i class=\"icon-windows\"><\/i> Download Now<\/a>\u00a0\u00a0<a class=\"custom-download-btn\" href=\"https:\/\/www.arysontechnologies.com\/demo-version\/Aryson-PST-Compress-Tool_mac.dmg\"><i class=\"icon-apple\"><\/i> Download Now<\/a><\/span><\/p>\r\n<p>MS Outlook is a cloud-based service that provides virtual space to store all your data files and important information in the form of Outlook data files. Well, if you have been using Outlook for a very long time, the Outlook files get oversized and create numerous difficulties with time. Sometimes, it\u2019s problematic to use Outlook because of its hanging and frequently corrupted files that cause low productivity and other frustrating issues. But don\u2019t worry; we are here to solve all your problems; read this informative blog to the end and decrease Outlook mailbox size without deleting any data from your Outlook account.<\/p>\r\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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#04_Best_Methods_to_Reduce_Mailbox_Size_of_Microsoft_Outlook\" >04 Best Methods to Reduce Mailbox Size of Microsoft Outlook<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#Method_1_Use_the_Mailbox_Cleanup_Tool_to_Reduce_the_Mailbox_Size_of_Outlook_without_Deleting\" >Method 1: Use the Mailbox Cleanup Tool to Reduce the Mailbox Size of Outlook without Deleting<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#Method_2_Use_the_Compact_Now_Feature_to_Minimise_Outlook_Mailbox_Size\" >Method 2: Use the Compact Now Feature to Minimise Outlook Mailbox Size<\/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.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#Method_3_Reduce_Outlook_Mailbox_Size_Using_Archive_Older_Messages\" >Method 3: Reduce Outlook Mailbox Size Using Archive Older Messages<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#Method_4_Reduce_Outlook_Mailbox_Size-A_Professional_Solution\" >Method 4: Reduce Outlook Mailbox Size-A Professional Solution<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#Follow_the_steps_below_to_minimize_Outlook_mailbox_size\" >Follow the steps below to minimize Outlook mailbox size:<\/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.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"04_Best_Methods_to_Reduce_Mailbox_Size_of_Microsoft_Outlook\"><\/span>04 Best Methods to Reduce Mailbox Size of Microsoft Outlook<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<p>There are various methods that can help you to solve the problem of complex and oversized Outlook files. Here, we have described some of the most efficient of them, so without any delay, let us get started.<\/p>\r\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_1_Use_the_Mailbox_Cleanup_Tool_to_Reduce_the_Mailbox_Size_of_Outlook_without_Deleting\"><\/span>Method 1: Use the Mailbox Cleanup Tool to Reduce the Mailbox Size of Outlook without Deleting<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Through the Outlook feature Mailbox Cleanup Tool, you can reduce the size of Outlook PST files. Perform the procedure below to reduce mailbox size in Outlook.<\/p>\r\n<ol>\r\n<li>Open <strong>the Outlook application<\/strong>.\u00a0<\/li>\r\n<li>Go to <strong>Files &gt;&gt; Info &gt;&gt; Tools<\/strong>.<\/li>\r\n<li>Select <strong>Mailbox Cleanup Tool<\/strong>.<\/li>\r\n<li>By selecting the <strong>&#8220;View Mailbox Size&#8230;&#8221;<\/strong> button, you can see the size of your current mailbox.<\/li>\r\n<li>To lessen the size of the Outlook data file and mailbox, <strong>enter the number of days<\/strong> to find the older emails and remove them.<\/li>\r\n<li>To minimize the size of the PST file, you can also <strong>empty deleted items folder, View Deleted Items Size, View Conflicts Size, or Empty Conflicts<\/strong>.<\/li>\r\n<li>By doing so, you can <strong>decrease the mailbox size of Outlook<\/strong>.<\/li>\r\n<\/ol>\r\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_2_Use_the_Compact_Now_Feature_to_Minimise_Outlook_Mailbox_Size\"><\/span>Method 2: Use the Compact Now Feature to Minimise Outlook Mailbox Size<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>It is another feature facilitated by MS Outlook to compact large PST files so that you can reduce Outlook mailbox size without deleting any information. Follow the descriptive steps mentioned below to perform this procedure.<\/p>\r\n<ol>\r\n<li>From the Outlook inbox,<strong> delete the undesired items<\/strong>.<\/li>\r\n<li>Open the <strong>Folder list<\/strong> in the Navigation Pane.<\/li>\r\n<li>Create empty folders by right-clicking the <strong>&#8220;Deleted Items&#8221; <\/strong>folder in the Navigation Pane.<\/li>\r\n<li>Go to File and select <strong>Account Settings&gt;Account Settings.<\/strong><\/li>\r\n<li>Choose an account and select the PST files under<strong> Data Files &gt; Settings &gt; Compact Now<\/strong>.<\/li>\r\n<li>By doing so you can <strong>reduce the size of your PST file<\/strong>.<\/li>\r\n<\/ol>\r\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_3_Reduce_Outlook_Mailbox_Size_Using_Archive_Older_Messages\"><\/span>Method 3: Reduce Outlook Mailbox Size Using Archive Older Messages<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Again, using Outlook, you can achieve messages you regularly need to free up space. So if you like to use this method, follow the steps below.<\/p>\r\n<ol>\r\n<li>Go to <strong>File&gt; Info.<\/strong><\/li>\r\n<li>Select Cleanup <strong>Tools<\/strong> from the menu.\u00a0<\/li>\r\n<li>Opt for the Archive option and you will find an Archive tab.<\/li>\r\n<li>Select <strong>Archive this folder<\/strong> and all subfolders options. Here, you also need to choose the file or folder you want to archive.<\/li>\r\n<li>Examine the choice to Archive the files you do not wish to be included in automated archiving; include items with <strong>&#8220;Do not Auto Archive&#8221;<\/strong> checked.<\/li>\r\n<li>Finally, click the <strong>OK<\/strong> button to complete the process.<\/li>\r\n<\/ol>\r\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_4_Reduce_Outlook_Mailbox_Size-A_Professional_Solution\"><\/span>Method 4: Reduce Outlook Mailbox Size-A Professional Solution<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n<p>Aryson PST Compress software is the ultimate tool to compress the Outlook mailbox file size. It is highly efficient in reducing the large size of PST file mailboxes with 100% accuracy. The software also fix &#8220;<a href=\"https:\/\/www.arysontechnologies.com\/blog\/fix-outlook-mailbox-full-issue\/\" target=\"_blank\" rel=\"noopener\">Outlook mailbox full after deleting<\/a>&#8221; issue by compressing Outlook PST file. This software can easily <a href=\"https:\/\/www.arysontechnologies.com\/blog\/compact-pst-files-without-outlook-in-easy-steps\/\" target=\"_blank\" rel=\"noopener\"><strong>compress PST files without Outlook<\/strong><\/a>, which you can access in all versions of Outlook 2016 and subsequent versions.\u00a0<\/p>\r\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Follow_the_steps_below_to_minimize_Outlook_mailbox_size\"><\/span>Follow the steps below to minimize Outlook mailbox size:<span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n<ol>\r\n<li><strong>Download and Ins<\/strong><strong>tall <\/strong>the Aryson PST Compress Tool.<\/li>\r\n<li>Use<strong> the Select Files option to browse PST files with<\/strong>\u00a0a large mailbox size.<\/li>\r\n<li>The software displays the Outlook PST file preview.<\/li>\r\n<li>Choose the folders that you need and then hit the <strong>Next<\/strong> button.<\/li>\r\n<li>Select the <strong>Compress options<\/strong> based on your needs.<\/li>\r\n<li>You can also use the built-in features provided by the software such as <strong>Remove Duplicate Items<\/strong> etc.<\/li>\r\n<li>Click the <strong>Start Compression<\/strong> button to reduce the Outlook mailbox size.<\/li>\r\n<\/ol>\r\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n<p>In the above context, we have explained the various methods to reduce the Outlook mailbox size. This covers various manual methods that can assist you in reducing Outlook mailbox size. However, they contain numerous problems that can affect the data integrity of your emails and other information. Hence, it is not suitable for non-technical people. In that case, we advise you to use a professional solution to reduce Outlook mailbox size.<\/p>\r\n<h4 class=\"faq-main_heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h4>\r\n\r\n\r\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1671799660860\"><strong class=\"schema-faq-question\">Q. What is the easiest way to reduce Outlook mailbox size?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans<\/strong> &#8211; Aryson PST Compress software is the best tool to reduce Outlook mailbox size in the easiest way. It can compact your oversized PST files with maximum accuracy and integrity. This software can easily compress the oversized PST files created by the different versions of Outlook. Hence we suggest you use this utility to compress your large mailbox.<br\/><strong>Follow the steps below to compress oversize PST files.<\/strong><br\/>1. Download and Run the <strong>Aryson PST Compress software<\/strong>.<br\/>2. Click the <strong>Select Files<\/strong> option to browse the PST file that you need to compress.\u00a0<br\/>3. <strong>Preview<\/strong> the content and hit the <strong>Next<\/strong> button.\u00a0<br\/>4. Pick the <strong>Compress <\/strong>options as per your requirement.<br\/>5. Utilize the additional features provided by the software.<br\/>6. Click on the <strong>Start Compression<\/strong> button to start the process.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1671799736134\"><strong class=\"schema-faq-question\">Q. My Outlook mailbox size is full, how can I compress it?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans<\/strong> &#8211; To reduce your Outlook mailbox size, first you need to export a large Outlook folder that you require to compress and save it on your local machine. After that, download Aryson PST Compress software, it is a magnificent utility to compact the Outlook mailbox size.<\/p> <\/div> <\/div>\r\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;3522&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;How to Reduce Outlook Mailbox Size Without Deleting in Easy Steps&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: This detailed write-up will guide you through the solutions to reduce Outlook mailbox size without deleting any data. We<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.arysontechnologies.com\/blog\/reduce-outlook-mailbox-size-in-easy-steps\/\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":3526,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[139],"tags":[],"class_list":["post-3522","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-outlook"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>4 Free Ways to Reduce Mailboxes Size of Outlook without Deleting<\/title>\n<meta name=\"description\" content=\"To reduce the mailbox size of Outlook then you can find out easy methods from here and Reduce Outlook Mailbox Size without Deleting.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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