{"id":1335,"date":"2023-06-12T12:26:46","date_gmt":"2023-06-12T12:26:46","guid":{"rendered":"https:\/\/www.gaintools.com\/how\/?p=1335"},"modified":"2023-06-12T12:47:56","modified_gmt":"2023-06-12T12:47:56","slug":"explain-maildir-file-format","status":"publish","type":"post","link":"https:\/\/www.gaintools.com\/how\/explain-maildir-file-format\/","title":{"rendered":"Explain Maildir the Difference between Maildir and Maildir++"},"content":{"rendered":"<p><strong>Summary<\/strong>:\u00a0 In this article, we learn about Maildir file format and how Maildir and Maildir++ are different from each other.<\/p>\n<p>Maildir is a file format to accommodate emails on a file system. It is one of the best alternatives to MBOX file format. The Maildir format can store or organize one email in a file. Hence they are lightweight.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79 counter-hierarchy ez-toc-counter ez-toc-grey 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.gaintools.com\/how\/explain-maildir-file-format\/#Characteristics_of_the_Maildir_file_format\" >Characteristics of the Maildir file format<\/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.gaintools.com\/how\/explain-maildir-file-format\/#Maildir_File_vs_Maildir\" >Maildir File vs Maildir++<\/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.gaintools.com\/how\/explain-maildir-file-format\/#Maildir_Directory_Structure\" >Maildir Directory Structure<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gaintools.com\/how\/explain-maildir-file-format\/#Benefits_of_Storing_Data_in_Maildir_File_Format\" >Benefits of Storing Data in Maildir File Format<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gaintools.com\/how\/explain-maildir-file-format\/#Compatibility_of_Maildir_Files\" >Compatibility of Maildir Files<\/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.gaintools.com\/how\/explain-maildir-file-format\/#Conversion_of_Maildir_File_Format_to_Multiple_File_formats\" >Conversion of Maildir File Format to Multiple File formats<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.gaintools.com\/how\/explain-maildir-file-format\/#Steps_to_Run_the_Program\" >Steps to Run the Program<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.gaintools.com\/how\/explain-maildir-file-format\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Characteristics_of_the_Maildir_file_format\"><\/span>Characteristics of the Maildir file format<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong>Directory Structure:<\/strong> Data management becomes easy with Maildir as each file can store one email message within a specific directory structure. The primary file is known as &#8220;Maildir,&#8221; holding three subdirectories: &#8220;cur&#8221; (for current messages), &#8220;new&#8221; (for new or unread messages), and &#8220;tmp&#8221; (for temporary storage during message delivery).<\/li>\n<li><strong>Organize with a Unique Name:<\/strong> You can differentiate one email folder with others because each one has a unique filename within the directory structure. It is a combination of characters.<\/li>\n<li><strong>File Naming Conventions:<\/strong> Maildir allows users to identify emails with specific file naming conventions. It helps identify messages in different scenarios including, flagging and message deletion.<\/li>\n<li><strong>Unlocked Files:<\/strong> Maildir file format is flexible or compatible to open on multiple email clients without conflicts. Users can create and access Maildir files on Dovecot, qmail, and Courier. The file format is better in performance. It is scalable and reliable compared to traditional mailbox formats. It eliminates the requirements of locking and simplify message handling.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Maildir_File_vs_Maildir\"><\/span>Maildir File vs Maildir++<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Maildir :-<\/strong> Maildir is a file format to store email messages systematically. The creator of Qmail email client has created the file format and now it is replacing MBOX file format. \u00a0The file format is compatible with Mozilla Thunderbird also. As you have learned, a Maildir file can store single message.<\/p>\n<p><strong>Maildir++ :-<\/strong> On the other hand, Maildir++ is a file extension of Maildir file format to store subfolders and mail quotas. The subdirectories saved in Maildir++ are named as (dot) .thefilename. Look at the below image for a hint of the file name saved in Maildir++.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1343 size-full\" src=\"https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir-direct.png\" alt=\"\" width=\"544\" height=\"250\" srcset=\"https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir-direct.png 544w, https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir-direct-300x138.png 300w\" sizes=\"auto, (max-width: 544px) 100vw, 544px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Maildir_Directory_Structure\"><\/span><strong>Maildir Directory Structure<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>As we had already discussed above that Maildir director structure holds three types of files. Let\u2019s understand about these directories.<\/p>\n<ul>\n<li><strong>Tmp-\u00a0<\/strong>As the name suggests, the directory holds\u00a0<strong>temporary emails<\/strong>.<\/li>\n<li><strong>New- <\/strong>As the name suggests, it stores recent or current unread messages. It can accommodate the\u00a0<strong>Return Path<\/strong>\u00a0and\u00a0<strong>Delivered to.<\/strong>\u00a0It helps in tracing emails. Messages are saved in RFC 822 format by the Maildir File Extension. It retains text and prevents leakage. It keeps record of modified and edited data.<\/li>\n<li><strong>Cur-<\/strong>\u00a0The already read messages store in the Cur directory. They store in a well-structured form in this directory. The already opened messages store in a separate directory.<\/li>\n<\/ul>\n<p><strong>Look at the image below to understand how the data organizes in Maildir file format.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1341 size-full\" src=\"https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir.png\" alt=\"\" width=\"499\" height=\"387\" srcset=\"https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir.png 499w, https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir-300x233.png 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/p>\n<p><strong>Identifying a Maildir File <\/strong><\/p>\n<p>Do you know how you can identify you have Maildir files. It saves with some special numeric numbers or code. As you can see in the below image what do you understand about these codes? You may confuse.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1342 size-full\" src=\"https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir-file.png\" alt=\"\" width=\"628\" height=\"116\" srcset=\"https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir-file.png 628w, https:\/\/www.gaintools.com\/how\/wp-content\/uploads\/2023\/06\/maildir-file-300x55.png 300w\" sizes=\"auto, (max-width: 628px) 100vw, 628px\" \/><\/p>\n<p>Let\u2019s decodes these codes. The Letter R (Read) denotes the file has already opened or read.<\/p>\n<p><strong>1463907228.H752758P32012.gator3018.hostgator.com,S=72605_2,S<\/strong><\/p>\n<table class=\" aligncenter\" style=\"width: 66.8725%; height: 217px;\" width=\"0\">\n<tbody>\n<tr style=\"height: 29px;\">\n<td style=\"width: 17.0055%; height: 15px;\">1463907228<\/td>\n<td style=\"width: 82.7841%; height: 15px;\">\n<p style=\"text-align: left;\">\u00a0 The Arrival Timestamp<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 28px;\">\n<td style=\"width: 17.0055%; height: 28px;\">S=72605<\/td>\n<td style=\"width: 82.7841%; height: 28px;\">\u00a0Denotes to the size of the file<\/td>\n<\/tr>\n<tr style=\"height: 28px;\">\n<td style=\"width: 17.0055%; height: 28px;\">Last S<\/td>\n<td style=\"width: 82.7841%; height: 28px;\">\u00a0S (Seen) seen the file but has not read it<\/td>\n<\/tr>\n<tr style=\"height: 28px;\">\n<td style=\"width: 17.0055%; height: 28px;\">Or R<\/td>\n<td style=\"width: 82.7841%; height: 28px;\">\u00a0R (Read) stands for the message has already read<\/td>\n<\/tr>\n<tr style=\"height: 28px;\">\n<td style=\"width: 17.0055%; height: 26px;\">Or F<\/td>\n<td style=\"width: 82.7841%; height: 26px;\">\u00a0F (Flagged) user has flagged that particular email Message<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Benefits_of_Storing_Data_in_Maildir_File_Format\"><\/span>Benefits of Storing Data in Maildir File Format<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>A safe file format with a minimum chance of data corruption<\/li>\n<li>A lightweight file thus easy to share<\/li>\n<li>Support advanced data filtration<\/li>\n<li>Easy to identify messages because they save according to their characteristic<\/li>\n<li>Compatible with several web and desktop-based email clients<\/li>\n<li>Keep data organize<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Compatibility_of_Maildir_Files\"><\/span>Compatibility of Maildir Files<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>Online Email Servers<\/strong>\u2013Dovecot, Qmail, Xmail, Courier Mail Server, Exim.<\/li>\n<li><strong>Email Client Applications<\/strong>\u2013 Alpine, Balsa, Pine, Thunderbird (Beta), Mutt, Cone, Malix.<\/li>\n<li><strong>Various Delivery Agents<\/strong>\u2013 MPOP, Getmail, Procmail, MSwatch, Maildrop,.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Conversion_of_Maildir_File_Format_to_Multiple_File_formats\"><\/span><strong>Conversion of Maildir File Format to Multiple File formats<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If you are looking to switch from Maildir file format to a specific file format effortlessly, you can consider GainTools <a href=\"https:\/\/www.gaintools.com\/maildir\/\">Maildir Converter<\/a>.<\/p>\n<p>It is one-stop application export Maildir data to Outlook, Thunderbird, Entourage, Apple Mail, and a range of email clients. In other words, it supports conversion of Maildir and Maildir ++ files to PST, MSG, EML, EMLX, and HTML file formats. The advanced application supports Maildir to PDF conversion to make Maildir data sharable without conflicts. It is a self-descriptive application to export data without technical issues. The tool is lightweight and easy-to-use by any novice.<\/p>\n<p style=\"text-align: center;\"><a class=\"maxbutton-1 maxbutton maxbutton-download-now\" target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/www.gaintools.com\/dl\/sign\/maildirdemogain.exe\"><span class='mb-text'>Download Now<\/span><\/a> <a class=\"maxbutton-2 maxbutton maxbutton-buy-now\" target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/www.gaintools.com\/maildir\/order\/\"><span class='mb-text'>Buy Now<\/span><\/a><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Steps_to_Run_the_Program\"><\/span>Steps to Run the Program<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Download and launch the program<\/p>\n<ul>\n<li>Step 1- Add the required Maildir file by clicking on the \u201cAdd Files\u201d tab<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.gaintools.com\/images\/screenshot\/maildir\/download-maildir-converter.png\" alt=\"download maildir converter\" width=\"998\" height=\"650\" \/><\/p>\n<ul>\n<li>Step 2- Choose the output file format that you want<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.gaintools.com\/images\/screenshot\/maildir\/pick-export-option.png\" alt=\"pick export option\" width=\"1000\" height=\"649\" \/><\/p>\n<ul>\n<li>Step 3- Click on the \u201cBrowse\u201d tab to filter a local location to save the exported data<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.gaintools.com\/images\/screenshot\/maildir\/click-conver-button.png\" alt=\"click conver button\" width=\"1000\" height=\"649\" \/><\/p>\n<ul>\n<li>Step 4- Finally press the \u201cConvert Now\u201d tab<\/li>\n<\/ul>\n<p>It is an independent conversion program.<\/p>\n<p><em><strong>Also Read :-<\/strong> <a href=\"https:\/\/www.gaintools.com\/how\/export-thunderbird-to-ms-outlook-pst-file-format\/\">Transfer Thunderbird mailbox to MS Outlook pst files<\/a>\u00a0<\/em><\/p>\n<h5><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p>Maildir file format is lightweight and compatible with a range of email clients. We hope that the above explanation can clear your doubts about what is Maildir and differences between Maildir and Maildir++. If you have any doubts, you can share us in the comment box.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Summary:\u00a0 In this article, we learn about Maildir file format and how Maildir and Maildir++ are different from each other. Maildir is a file format to accommodate emails on a file system. It is one of the best alternatives to MBOX file format. The Maildir format can store or organize one email in a file&#8230;.<\/p>\n<p class=\"more-link-wrap\"><a href=\"https:\/\/www.gaintools.com\/how\/explain-maildir-file-format\/\" class=\"more-link\">Read More<span class=\"screen-reader-text\"> &ldquo;Explain Maildir the Difference between Maildir and Maildir++&rdquo;<\/span> &raquo;<\/a><\/p>\n","protected":false},"author":5,"featured_media":1338,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-1335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-maildir-converter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Define Maildir &amp; Explain Difference between Maildir and Maildir++<\/title>\n<meta name=\"description\" content=\"Learn about the Maildir &amp; Difference between Maildir 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