{"id":8745,"date":"2026-05-27T09:30:41","date_gmt":"2026-05-27T09:30:41","guid":{"rendered":"https:\/\/www.mailconvertertools.com\/blog\/?p=8745"},"modified":"2026-05-27T09:30:42","modified_gmt":"2026-05-27T09:30:42","slug":"import-olm-to-protonmail","status":"publish","type":"post","link":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/","title":{"rendered":"Import OLM to ProtonMail Without Losing Email or Attachments"},"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;8745&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;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&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;0\\\/5 - (0 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Import OLM to ProtonMail Without Losing Email or Attachments&quot;,&quot;width&quot;:&quot;0&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: 0px;\">\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            <span class=\"kksr-muted\">Rate this post<\/span>\n    <\/div>\n    <\/div>\n<div class=\"p-4 mb-4\" style=\"border: 2px solid #005EFF; border-radius: 30px;\">\n<p><b>User Query: <\/b><span style=\"font-weight: 400;\">I recently switched over to ProtonMail from Outlook for Mac. Now I have .olm files on my desktop with all my old emails, and I have no idea how to import them into ProtonMail. Is there any way to import OLM to ProtonMail without losing everything or messing up the folder structure?<\/span><\/p>\n<\/div>\n<div class=\"summary\" style=\"background-color: #effaff; padding: 20px; border-left: 4px solid #1A61A8; margin-bottom: 10px; border-radius: 20px; border-right: 4px solid #1A61A8; box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 2px 6px 2px;\">\n<p><span style=\"font-weight: 400;\">Switching from Outlook for Mac to ProtonMail sounds simple until you realize ProtonMail does not directly accept .olm files. That leaves a lot of people stuck with their old emails going nowhere. This blog walks you through how to actually move your data across. Here, we will cover a manual method and the automated <\/span><b>MailConverterTools <\/b><a href=\"https:\/\/www.mailconvertertools.com\/olm\/\" target=\"_blank\" rel=\"noopener\"><b>OLM Converter Tool<\/b><\/a><span style=\"font-weight: 400;\">. Both options are explained in simple steps to get the OLM file in ProtoMail.<\/span><\/p>\n<\/div>\n<div class=\"tabset\"><!-- Tab 1 --> <input id=\"tab1\" checked=\"checked\" name=\"tabset\" type=\"radio\" aria-controls=\"marzen\" \/> <label for=\"tab1\"> Windows<\/label> <!-- Tab 2 --> <input id=\"tab2\" name=\"tabset\" type=\"radio\" aria-controls=\"rauchbier\" \/> <label for=\"tab2\"> Mac<\/label><\/p>\n<div class=\"tab-panels\">\n<section id=\"marzen\" class=\"tab-panel\"><a class=\"custom-download-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/Sysinfo-Olm-Converter-Win.exe\"> Download Now<\/a> <a class=\"custom-buy-btn\" href=\"https:\/\/www.mailconvertertools.com\/olm-to-pst\/buynow.php\" target=\"_blank\" rel=\"noopener noreferrer\"> Buy Now<\/a><\/section>\n<section id=\"rauchbier\" class=\"tab-panel\"><a class=\"custom-download-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/Sysinfo-Olm-To-Pst-Converter_mac-demo.dmg\"> Download Now<\/a> <a class=\"custom-buy-btn\" href=\"https:\/\/www.mailconvertertools.com\/olm-to-pst\/buynow.php\" target=\"_blank\" rel=\"noopener noreferrer\"> Buy Now<\/a><\/section>\n<\/div>\n<\/div>\n<h2>When Users Transfer OLM Files to ProtonMail?<\/h2>\n<ul>\n<li aria-level=\"1\">During the switch from Outlook for Mac to Proto Mail for better email privacy.<\/li>\n<li aria-level=\"1\">To move the OLM mailbox to the secure cloud account.<\/li>\n<li aria-level=\"1\">For easy access to OLM files on multiple devices through Proton Mail.<\/li>\n<li aria-level=\"1\">When a user wants to reduce the dependency on OLM storage files, they can easily become inaccessible.<\/li>\n<li aria-level=\"1\">To migrate the data of business and personal accounts to a GDPR-focused email service.<\/li>\n<li aria-level=\"1\">Consolidating multiple Outlook mailbox backups into one Proton Mail account.<\/li>\n<li aria-level=\"1\">Leaving Microsoft ecosystem services and adopting privacy-first alternatives.<\/li>\n<\/ul>\n<h1>Free Solution to Import OLM to ProtonMail Manually<\/h1>\n<p>If you want to import your OLM files to ProtonMail manually, then this method is the best fit as a manual solution. It is not a direct approach for this import, but it works well.<\/p>\n<p><strong>Working Guide to Manually Import OLM File to ProtonMail<\/strong><\/p>\n<ol>\n<li aria-level=\"1\">Launch <strong>Outlook for Mac<\/strong> and click <strong>File <\/strong>&gt; <strong>Import<\/strong>.<\/li>\n<li aria-level=\"1\">Thereafter, select <strong>Outlook for Mac Archive File (.olm)<\/strong> and browse the <strong>OLM <\/strong>file.<\/li>\n<li aria-level=\"1\">Then, import the OLM mailbox into Outlook successfully.<\/li>\n<li aria-level=\"1\">Now, open your browser and <strong>sign in<\/strong> to your<strong> ProtonMail <\/strong>account.<\/li>\n<li aria-level=\"1\">Afterwards, click on <strong>Settings <\/strong>&gt; <strong>See All Settings<\/strong>.<\/li>\n<li aria-level=\"1\">Furthermore, navigate to the <strong>Import via Easy Switch <\/strong>section.<\/li>\n<li aria-level=\"1\">After that, select <strong>New Import <\/strong>&gt; <strong>Outlook <\/strong>as your email provider.<\/li>\n<li aria-level=\"1\">Follow the on-screen instructions to connect your Outlook account with Proton Mail.<\/li>\n<li aria-level=\"1\">Choose the mailbox data and <strong>start the migration<\/strong> process.<\/li>\n<li aria-level=\"1\">Additionally, allow <strong>Easy Switch<\/strong> to export OLM file to ProtonMail.<\/li>\n<\/ol>\n<p><strong>Limitations of the Manual Method<\/strong><\/p>\n<ul>\n<li aria-level=\"1\">ProtonMail has no option to import OLM files directly.<\/li>\n<li aria-level=\"1\">This process can be lengthy or time-consuming.<\/li>\n<li aria-level=\"1\">In the manual process, you may lose the folder hierarchy.<\/li>\n<li aria-level=\"1\">You have to configure Outlook properly to avoid errors.<\/li>\n<li aria-level=\"1\">Internet interruptions may affect the migration process.<\/li>\n<li aria-level=\"1\">Technical knowledge may be needed during account configuration.<\/li>\n<\/ul>\n<h2>Organizational Level Approach to Import OLM to ProtonMail<\/h2>\n<p>The <strong>MailConverterTools OLM File Converter Tool<\/strong> lets you add multiple OLM files at once. This tool will let you migrate emails with large attachments. Additionally, you can use this tool to <a href=\"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-imap\/\"><strong>import OLM to IMAP<\/strong><\/a>, Gmail, Office 365, and more. There is a free demo version available if you want to test it before buying. Demo version lets you save up to 50 emails per folder. Moreover, you can read this to <a href=\"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-yahoo-mail\/\"><strong>import OLM to Yahoo Mail<\/strong><\/a> account in easy steps.<\/p>\n<p><strong>Steps to Move OLM into ProtonMail<\/strong><\/p>\n<ol>\n<li>Download the <strong>OLM File Converter Software<\/strong>.<img loading=\"lazy\" decoding=\"async\" style=\"margin: 20px 0;  class=\"alignleft size-full wp-image-8747\" src=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/1-6.webp\" alt=\"Import OLM to ProtonMail\" width=\"751\" height=\"400\" srcset=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/1-6.webp 751w, https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/1-6-300x160.webp 300w\" sizes=\"auto, (max-width: 751px) 100vw, 751px\" \/><\/li>\n<li>Choose and add your <strong>OLM files <\/strong>and click <strong>Proceed<\/strong>.<img loading=\"lazy\" decoding=\"async\" style=\"margin: 20px 0; class=\"alignleft size-full wp-image-8748\" src=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/2-6.webp\" alt=\"Import OLM to ProtonMail\" width=\"751\" height=\"400\" srcset=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/2-6.webp 751w, https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/2-6-300x160.webp 300w\" sizes=\"auto, (max-width: 751px) 100vw, 751px\" \/><\/li>\n<li>After that, <strong>preview <\/strong>and <strong>select <\/strong>your files and click <strong>Proceed<\/strong>.<img loading=\"lazy\" decoding=\"async\" style=\"margin: 20px 0; class=\"alignleft size-full wp-image-8749\" src=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/3-6.webp\" alt=\"Import OLM to ProtonMail\" width=\"751\" height=\"400\" srcset=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/3-6.webp 751w, https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/3-6-300x160.webp 300w\" sizes=\"auto, (max-width: 751px) 100vw, 751px\" \/><\/li>\n<li>Select <strong>IMAP <\/strong>as the destination and log in with <strong>ProtonMail<\/strong> credentials.<img loading=\"lazy\" decoding=\"async\" style=\"margin: 20px 0; class=\"alignleft size-full wp-image-8750\" src=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/4-5.webp\" alt=\"Import OLM to ProtonMail\" width=\"751\" height=\"400\" srcset=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/4-5.webp 751w, https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/4-5-300x160.webp 300w\" sizes=\"auto, (max-width: 751px) 100vw, 751px\" \/><\/li>\n<li>Finally, apply the filters and click <strong>Start Process<\/strong>.<img loading=\"lazy\" decoding=\"async\" style=\"margin: 20px 0; class=\"alignleft size-full wp-image-8751\" src=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/5-4.webp\" alt=\"Import OLM to ProtonMail\" width=\"751\" height=\"400\" srcset=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/5-4.webp 751w, https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/5-4-300x160.webp 300w\" sizes=\"auto, (max-width: 751px) 100vw, 751px\" \/><\/li>\n<\/ol>\n<div class=\"py-3 ps-3\" style=\"border: 2px solid #4A90E2; margin-top: 10px; margin-bottom: 10px; padding-top: 8px; padding-left: 10px; border-radius: 10px; background: #E8F8E8;\">\n<h4>Successful User Case<\/h4>\n<p>A graphics designer was working with the OLM file from the last 5 years. Then he decided to switch to ProtonMail for further projects. But getting his OLM files there is not a direct process. The manual method he uses is a complicated and lengthy process. He migrated some files through manual methods, but migrating huge amounts of data manually is not possible.<\/p>\n<p>After that, he decided to use a professional <strong>MailConverterTools OLM to ProtonMail Converter<\/strong>. This tool helps him to overcome the challenges that he was facing with the manual method. In minimal time, he was able to migrate his file with no data loss and manual errors.<\/p>\n<\/div>\n<h3>Conclusion<\/h3>\n<p>To conclude, Users often find the process complicated because there is no option to import OLM to ProtonMail directly. But there are ways to import those files manually and through the professional tool. Both methods work well in different situations. For users looking for a faster and more reliable process, the automated solution is the simplified way to transfer OLM data without data loss.<\/p>\n<h4 class=\"faq_heading\">Frequently Asked Questions<\/h4>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1779872830759\"><strong class=\"schema-faq-question\"><strong>Q.1 Which is the best tool to import OLM to Proton Mail?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>The MailConverterTools OLM Converter Tool is considered one of the most reliable solutions to import OLM files into Proton Mail. It supports bulk migration, preserves email formatting and folder hierarchy, and allows users to transfer emails directly through IMAP configuration.\u00a0<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1779872831945\"><strong class=\"schema-faq-question\"><strong>Q.2 Is It Possible to Import OLM Files to Proton Mail Directly?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>No, Proton Mail does not support direct OLM file imports. You first need to import the OLM file into Outlook for Mac and then use Proton Mail Easy Switch or an automated OLM migration tool to complete the transfer process.\u00a0<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1779872833498\"><strong class=\"schema-faq-question\"><strong>Q.3 Will My Email Folders and Attachments Be Preserved During OLM Migration?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>Yes, the Professional OLM Migration Tool preserves email folders, attachments, metadata, and mailbox hierarchy during the migration process.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1779872833954\"><strong class=\"schema-faq-question\"><strong>Q.4 Can I Transfer Multiple OLM Files to Proton Mail in One Process<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> Yes, using a professional solution like the MailConverterTools OLM Converter Tool, you can add and migrate multiple OLM files simultaneously. This feature is particularly useful for organizations and users managing several Outlook for Mac archive files at once.\u00a0<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1779872835441\"><strong class=\"schema-faq-question\"><strong>Q.5 Why is the Import option missing in the new Outlook for Mac?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> Several users noticed that the \u201cNew Outlook\u201d interface on Mac does not always include the OLM import feature. Users often switch back to Legacy Outlook mode to access the Import option.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1779873139640\"><strong class=\"schema-faq-question\"><strong>Q.6 Are there size limitations when importing large OLM files?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>Yes, very large OLM files may cause Outlook to slow down, crash, or display disk space errors during import. Users with 50 GB to 100 GB OLM files frequently report these issues<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>User Query: I recently switched over to ProtonMail from Outlook for Mac. Now I have .olm files on my desktop<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/\">Read More<\/a><\/p>\n","protected":false},"author":9,"featured_media":8752,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[],"class_list":["post-8745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-olm-converter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Import OLM to ProtonMail Without Losing Email or Attachments<\/title>\n<meta name=\"description\" content=\"Import OLM to ProtonMail securely with this modern guide. Discover the best way to transfer OLM files to ProtonMail and protect your emails.\" \/>\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.mailconvertertools.com\/blog\/import-olm-to-protonmail\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Import OLM to ProtonMail Without Losing Email or Attachments\" \/>\n<meta property=\"og:description\" content=\"Import OLM to ProtonMail securely with this modern guide. Discover the best way to transfer OLM files to ProtonMail and protect your emails.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/\" \/>\n<meta property=\"og:site_name\" content=\"MailConverterTools Blog | Find Tips &amp; Tricks for Emails\/Data issues\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-27T09:30:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-27T09:30:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.mailconvertertools.com\/blog\/wp-content\/uploads\/2026\/05\/import-olm-to-protonmail.webp\" \/>\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\/webp\" \/>\n<meta name=\"author\" content=\"Vikas Bajpai\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vikas Bajpai\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/\"},\"author\":{\"name\":\"Vikas Bajpai\",\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/#\\\/schema\\\/person\\\/2cad41fecbda05c4ef3dc9f8dd0c6201\"},\"headline\":\"Import OLM to ProtonMail Without Losing Email or Attachments\",\"datePublished\":\"2026-05-27T09:30:41+00:00\",\"dateModified\":\"2026-05-27T09:30:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/\"},\"wordCount\":561,\"publisher\":{\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/import-olm-to-protonmail.webp\",\"articleSection\":[\"OLM Converter\"],\"inLanguage\":\"en-US\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/\",\"url\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/\",\"name\":\"Import OLM to ProtonMail Without Losing Email or Attachments\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/import-olm-to-protonmail\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.mailconvertertools.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/import-olm-to-protonmail.webp\",\"datePublished\":\"2026-05-27T09:30:41+00:00\",\"dateModified\":\"2026-05-27T09:30:42+00:00\",\"description\":\"Import OLM to ProtonMail securely with this modern guide. 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It supports bulk migration, preserves email formatting and folder hierarchy, and allows users to transfer emails directly through IMAP configuration.\u00a0","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872831945","position":2,"url":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872831945","name":"Q.2 Is It Possible to Import OLM Files to Proton Mail Directly?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans: <\/strong>No, Proton Mail does not support direct OLM file imports. You first need to import the OLM file into Outlook for Mac and then use Proton Mail Easy Switch or an automated OLM migration tool to complete the transfer process.\u00a0","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872833498","position":3,"url":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872833498","name":"Q.3 Will My Email Folders and Attachments Be Preserved During OLM Migration?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans: <\/strong>Yes, the Professional OLM Migration Tool preserves email folders, attachments, metadata, and mailbox hierarchy during the migration process.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872833954","position":4,"url":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872833954","name":"Q.4 Can I Transfer Multiple OLM Files to Proton Mail in One Process","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans:<\/strong> Yes, using a professional solution like the MailConverterTools OLM Converter Tool, you can add and migrate multiple OLM files simultaneously. This feature is particularly useful for organizations and users managing several Outlook for Mac archive files at once.\u00a0","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872835441","position":5,"url":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779872835441","name":"Q.5 Why is the Import option missing in the new Outlook for Mac?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans:<\/strong> Several users noticed that the \u201cNew Outlook\u201d interface on Mac does not always include the OLM import feature. Users often switch back to Legacy Outlook mode to access the Import option.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779873139640","position":6,"url":"https:\/\/www.mailconvertertools.com\/blog\/import-olm-to-protonmail\/#faq-question-1779873139640","name":"Q.6 Are there size limitations when importing large OLM files?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans: <\/strong>Yes, very large OLM files may cause Outlook to slow down, crash, or display disk space errors during import. Users with 50 GB to 100 GB OLM files frequently report these issues","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/posts\/8745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/comments?post=8745"}],"version-history":[{"count":2,"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/posts\/8745\/revisions"}],"predecessor-version":[{"id":8753,"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/posts\/8745\/revisions\/8753"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/media\/8752"}],"wp:attachment":[{"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/media?parent=8745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/categories?post=8745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mailconvertertools.com\/blog\/wp-json\/wp\/v2\/tags?post=8745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}