{"id":7473,"date":"2025-11-19T06:11:26","date_gmt":"2025-11-19T06:11:26","guid":{"rendered":"https:\/\/www.macsonik.com\/blog\/?p=7473"},"modified":"2026-06-26T12:04:05","modified_gmt":"2026-06-26T12:04:05","slug":"migrate-from-appriver-to-office-365","status":"publish","type":"post","link":"https:\/\/www.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/","title":{"rendered":"How to Migrate from AppRiver to Office 365 Mac? Simple Tutorial"},"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;7473&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;How to Migrate from AppRiver to Office 365 Mac? Simple Tutorial&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<p class=\"user-query\"><strong class=\"text-danger\">Summary:<\/strong> Email migrations have become a common scenario for businesses. AppRiver users, especially those using Secure Hosted Exchange or Secure Cloud Mail, consider upgrading to M365 for improved integrations, increased flexibility with storage, and centralized admin controls. However, on a Mac system, it can sometimes be difficult to migrate from AppRiver to Office 365. This simple guide will assist you through a few reliable migration strategies, including both manual ways and an automated <a href=\"https:\/\/www.macsonik.com\/imap-email-backup\/\"><strong>IMAP Email Backup Tool<\/strong><\/a>. The latter will ensure that emails, folders, and attachments transfer successfully and safely, with no downtime.<\/p>\n\n<div class=\"ms_btn_sec text-center my-3\"><a class=\"btn btn-download mr-3\" href=\"https:\/\/www.macsonik.com\/dl\/macsonik-imap-backup.dmg\"><i class=\"icon-download-1\"><\/i> Download Now<\/a><a class=\"btn btn-buy\" href=\"https:\/\/www.macsonik.com\/imap-email-backup\/buy.php\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/div>\n<!-- \/wp:post-content -->\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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: #0a0a0a;color:#0a0a0a\" 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: #0a0a0a;color:#0a0a0a\" 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.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/#Why_Users_Migrate_AppRiver_Mailbox_to_Office_365_Reddit\" >Why Users Migrate AppRiver Mailbox to Office 365 Reddit?<\/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.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/#Accurate_Methods_to_Migrate_from_AppRiver_to_Office_365\" >Accurate Methods to Migrate from AppRiver to Office 365<\/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.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/#Method_1_Move_AppRiver_Emails_to_Microsoft_365_via_Outlook\" >Method 1: Move AppRiver Emails to Microsoft 365 via Outlook<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/#Method_2_Migrate_from_AppRiver_to_Office_365_by_Expert_Tool\" >Method 2: Migrate from AppRiver to Office 365 by Expert Tool<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/#Steps_to_Migrate_AppRiver_Mailbox_to_Office_365\" >Steps to Migrate AppRiver Mailbox to Office 365<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Users_Migrate_AppRiver_Mailbox_to_Office_365_Reddit\"><\/span>Why Users Migrate AppRiver Mailbox to Office 365 Reddit?<span class=\"ez-toc-section-end\"><\/span><\/h2>\nThe most common reasons organizations migrate their work email solutions are:\n<ul>\n \t<li>Office 365 offers native integrations to Teams, SharePoint, OneDrive, Power BI, Outlook, and Azure AD.<\/li>\n \t<li>Centralized regulatory compliance improves email governance and auditing capabilities.<\/li>\n \t<li>Increased mailbox storage space with easy scalability.<\/li>\n \t<li>Much better device synchronization across macOS, iOS, Windows, and mobile platforms.<\/li>\n \t<li>IT teams want a standardized operating environment that supports hybrid cloud configurations.<\/li>\n<\/ul>\n<div style=\"background: linear-gradient(135deg, #FAFDFF, #DDF2FF); border-left: 5px solid #1E4258; border-radius: 12px; padding: 20px 25px; margin: 15px 0; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08); transition: all 0.3s ease; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #2a2a2a;\">\n<p style=\"font-size: 15px; line-height: 1.6; margin: 0;\"><strong> Example Case:<\/strong>\nA company using multiple AppRiver mailboxes wants to provide unified collaboration through Microsoft Teams and SharePoint. Migrating to Office 365 provides these tools and allows the organization to combine them within a single ecosystem, reducing application switching and IT overhead.<\/p>\n\n<\/div>\n<div style=\"background: linear-gradient(135deg, #FAFDFF, #DDF2FF); border-left: 5px solid #1E4258; border-radius: 12px; padding: 20px 25px; margin: 15px 0; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08); transition: all 0.3s ease; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #2a2a2a;\">\n<p style=\"font-size: 15px; line-height: 1.6; margin: 0;\"><strong> Suggested Read:<\/strong> <a href=\"https:\/\/www.macsonik.com\/blog\/migrate-qmail-emails-to-office-365\/\"><strong>Migrate Qmail Emails to Office 365<\/strong><\/a><\/p>\n\n<\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Accurate_Methods_to_Migrate_from_AppRiver_to_Office_365\"><\/span>Accurate Methods to Migrate from AppRiver to Office 365<span class=\"ez-toc-section-end\"><\/span><\/h2>\nSince AppRiver also provides cloud-based services, the migration becomes quite difficult. Moving from one cloud to another requires careful and precise steps. Here, learn two different methods for AppRiver to Office 365 migration with step-by-step instructions. These are briefly defined in the upcoming part of this section.\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_1_Move_AppRiver_Emails_to_Microsoft_365_via_Outlook\"><\/span>Method 1: Move AppRiver Emails to Microsoft 365 via Outlook<span class=\"ez-toc-section-end\"><\/span><\/h3>\nTo use this method, ensure you have IMAP enabled in IMAP, admin credentials of your accounts, and installed Outlook for Mac. Once you have all, follow these steps:\n<ol>\n \t<li>Start <strong>Outlook for Mac<\/strong> and configure your <strong>AppRiver account<\/strong> in it.<\/li>\n \t<li>Use the following credentials:\n<ul>\n \t<li>Incoming: <strong>imap.appriver.com<\/strong> (Port<strong> 993<\/strong> and <strong>SSL<\/strong>)<\/li>\n \t<li>Outgoing: <strong>smtp.appriver.com<\/strong> (Port <strong>465\/587<\/strong> and <strong>SSL\/TLS<\/strong>)<\/li>\n<\/ul>\n<\/li>\n \t<li>Furthermore, similarly configure your <strong>Office 365<\/strong> account.<\/li>\n \t<li>Use the credentials <a href=\"http:\/\/outlook.office365.com\"><strong>outlook.office365.com<\/strong><\/a> and tap <strong>Add Account<\/strong> to set up.<\/li>\n \t<li>Once done, Outlook for Mac will display their folders in the index on the left.<\/li>\n \t<li>Later, from the <strong>AppRiver<\/strong> mail folders, select the <strong>emails<\/strong> to migrate.<\/li>\n \t<li>After that, create a <strong>new folder <\/strong>in the<strong> Office 365 <\/strong>folders to move from AppRiver to Office 365.<\/li>\n \t<li>At last, <strong>drag<\/strong> the emails from AppRiver and <strong>drop<\/strong> them into the O365 new folder.<\/li>\n<\/ol>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_2_Migrate_from_AppRiver_to_Office_365_by_Expert_Tool\"><\/span>Method 2: Migrate from AppRiver to Office 365 by Expert Tool<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<strong>MacSonik IMAP Backup Tool<\/strong> is a top-notch solution whether you have a few emails or bulk mailboxes. It allows for a secure and complete migration, including the email attachments and labels, etc., while keeping data and structure intact. Additionally, the advanced software ensures that any techie and non-techie can use it firmly and directly transfer emails from AppRiver to Office 365. Moreover, it offers some exceptional filters and features that streamline, simplify, and scale with zero loss.\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Migrate_AppRiver_Mailbox_to_Office_365\"><\/span>Steps to Migrate AppRiver Mailbox to Office 365<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n \t<li>Begin with the installation and launch of the <strong>MacSonik IMAP Backup Tool<\/strong>.<\/li>\n \t<li>Then, enter the credentials for your <strong>AppRiver<\/strong> Mailbox and<strong> log in<\/strong>.<\/li>\n \t<li>Further, select the email folders from the tree structure. Tap<strong> Next<\/strong>.<\/li>\n \t<li>After that, choose <strong>Office 365 <\/strong>from the saving options and <strong>log in<\/strong> with your account.<\/li>\n \t<li>Finally, use the filters provided by the software and click <strong>Start Process<\/strong> to migrate.<\/li>\n<\/ol>\n<strong>Also Read:\u00a0<a href=\"https:\/\/www.macsonik.com\/blog\/migrate-cpanel-email-to-zoho-mail\/\">Migrate cPanel Email to Zoho Mail<\/a><\/strong>\n\nThe tool automatically manages everything and instantly completes the migration in the minimal possible time. Also, it has a<a href=\"https:\/\/www.macsonik.com\/dl\/macsonik-imap-backup.dmg\"><strong> Demo Version<\/strong><\/a> for performance evaluation and a few free transfers. Besides this, it overcomes the following manual limitations when you move from AppRiver to Office 365:\n<ul>\n \t<li>Drag and drop generally doesn\u2019t work with large folders, which are managed here with direct transfers.<\/li>\n \t<li>Attachments do not sync on unstable networks, and formatting often breaks. This is handled easily by the tool with preservation.<\/li>\n \t<li>The process is very slow, and there is no data security or formatting option. The versatile IMAP Backup Software ensures secure OAuth Authentication with multiple filters.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\nIt can be pretty straightforward to migrate from AppRiver to Office 365 if you use the right method. For small mailboxes, manual transfer via IMAP works fine. But to successfully migrate large mailboxes, accurately and efficiently. A dedicated IMAP Migration Tool is best as it facilitates streamlined migration of emails, attachments, and folder structures. With the right workflow in place, the change to the Microsoft 365 realm is faster, safer, and disruption-free.\n<div style=\"background: linear-gradient(135deg, #FAFDFF, #DDF2FF); border-left: 5px solid #1E4258; border-radius: 12px; padding: 20px 25px; margin: 15px 0; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08); transition: all 0.3s ease; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #2a2a2a;\">\n<p style=\"font-size: 15px; line-height: 1.6; margin: 0;\"><strong> Also Read:<\/strong> <a href=\"https:\/\/www.macsonik.com\/blog\/migrate-dreamhost-email-to-gmail\/\"><strong>Migrate DreamHost Email to Gmail<\/strong><\/a><\/p>\n\n<\/div>\n<h2 class=\"faq_heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<!-- wp:yoast\/faq-block {\"questions\":[{\"id\":\"faq-question-1763530149511\",\"question\":[\"Q1. What are the major factors to transfer emails from AppRiver to Office 365?\"],\"answer\":[{\"type\":\"strong\",\"props\":{\"children\":[\"Ans:\"]}},\" The common reasons are:\",{\"type\":\"br\",\"props\":{\"children\":[]}},\"1. After the merger of AppRiver with ZixCorp, its billing has become too complex and inconvenient with plans.\u00a0\",{\"type\":\"br\",\"props\":{\"children\":[]}},\"2. No support is provided by AppRiver as compared to Office 365.\"],\"jsonQuestion\":\"Q1. What are the major factors to transfer emails from AppRiver to Office 365?\",\"jsonAnswer\":\"\\u003cstrong\\u003eAns:\\u003c\/strong\\u003e The common reasons are:\\u003cbr\/\\u003e1. After the merger of AppRiver with ZixCorp, its billing has become too complex and inconvenient with plans.\u00a0\\u003cbr\/\\u003e2. No support is provided by AppRiver as compared to Office 365.\"},{\"id\":\"faq-question-1763530164462\",\"question\":[\"Q2. How long does it take to move AppRiver emails to Microsoft 365?\"],\"answer\":[{\"type\":\"strong\",\"props\":{\"children\":[\"Ans:\"]}},\" With the manual method, the process takes from hours to days or more. Whereas the MacSonik IMAP Migration Tool completes the export in some time with precision.\"],\"jsonQuestion\":\"Q2. How long does it take to move AppRiver emails to Microsoft 365?\",\"jsonAnswer\":\"\\u003cstrong\\u003eAns:\\u003c\/strong\\u003e With the manual method, the process takes from hours to days or more. Whereas the MacSonik IMAP Migration Tool completes the export in some time with precision.\"}]} -->\n<div class=\"schema-faq wp-block-yoast-faq-block\">\n<div id=\"faq-question-1763530149511\" class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Q1. What are the major factors to transfer emails from AppRiver to Office 365?<\/strong>\n<p class=\"schema-faq-answer\"><strong>Ans:<\/strong> The common reasons are:\n1. After the merger of AppRiver with ZixCorp, its billing has become too complex and inconvenient with plans.\n2. No support is provided by AppRiver as compared to Office 365.<\/p>\n\n<\/div>\n<div id=\"faq-question-1763530164462\" class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Q2. How long does it take to move AppRiver emails to Microsoft 365?<\/strong>\n<p class=\"schema-faq-answer\"><strong>Ans:<\/strong> With the manual method, the process takes from hours to days or more. Whereas the MacSonik IMAP Migration Tool completes the export in some time with precision.<\/p>\n\n<\/div>\n<\/div>\n<!-- \/wp:yoast\/faq-block -->","protected":false},"excerpt":{"rendered":"<p>Summary: Email migrations have become a common scenario for businesses. AppRiver users, especially those using Secure Hosted Exchange or Secure<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.macsonik.com\/blog\/migrate-from-appriver-to-office-365\/\">Read More<\/a><\/p>\n","protected":false},"author":10,"featured_media":7474,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[],"class_list":["post-7473","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-imap-backup"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Migrate from AppRiver to Office 365 Mac? Simple Tutorial<\/title>\n<meta name=\"description\" content=\"Easily migrate from AppRiver to Office 365 with seamless email transfer. 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