EdbMails EDB Recovery and Migration software
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    • Exchange Server MigrationMigrate between any Exchange Servers, Exchange to Office 365, Export Exchange to PST, Migrate PST files to Exchange server
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    • IMAP Email Backup & MigrationMigrate between any IMAP Servers (Gmail, Outlook, Zimbra, Zoho, Yahoo etc.), IMAP to Office 365, Exchange, IMAP to PST, PST to IMAP
    • G Suite MigrationMigrate emails, contacts, calendars from G Suite /Google Work Space to Office 365, Exchange, IMAP
    • SharePoint Online MigrationMigrate documents, lists, files and folders from SharePoint sites
    • OneDrive for Business MigrationMigrate documents, lists, files and folders from OneDrive
    • Microsoft Teams MigrationMigrate Teams, chats, channels, documents, files and folders etc.
    Exchange and Office 365 Backup
    • Office 365 BackupIncremental, Granular, Encrypted and Compressed Office 365 Mailboxes Backup
    • Exchange Server BackupIncremental, Granular, Encrypted and Compressed Exchange Mailboxes Backup
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    • Duplicate Remover - Office 365, Exchange, IMAP & Outlook Remove duplicate emails, calendars, contacts, journal etc. from Office 365, Exchange, IMAP, Outlook, Gmail, Zimbra, Zoho Mail etc.
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User’s Manual
IMAP Email Backup & Migration

User Manual

User Manual

  • Overview
  • System Requirements
  • Migration Scenarios
  • Installation
    • Installation process
    • Reinstall or Upgrade
    • How to uninstall
  • Initial Setup
  • FAQ
    • IMAP Migration to Office 365
    • IMAP Migration to Exchange
    • Gmail Backup and Migration
  • Videos
    • IMAP to Office 365 Migration
    • IMAP to Exchange Migration
    • Gmail Backup and Migration
    • IMAP Migration to PST
    • Outlook PST to IMAP Migration
    • IMAP Migration to IMAP
  • Screenshots
    • IMAP Migration to Office 365
    • IMAP Migration to Exchange
    • Gmail Backup and Migration
    • IMAP Migration to PST
  • How it works?
    • IMAP Migration to Office 365
    • IMAP Migration to Exchange
    • Gmail Migration
    • IMAP Migration to PST
    • IMAP Migration to IMAP
    • Outlook PST to IMAP
    • cPanel to cPanel Migration
    • IMAP to Office 365 Shared mailbox migration
  • Connect to IMAP
    • Connect IMAP Single Server
    • Connect IMAP Multiple Server
  • Enable IMAP access in Gmail
  • Export Gmail contacts and calendars
    • Export Gmail contacts to Office 365
    • Export Gmail Calendars to Office 365
  • Connect to Office 365
    • Modern Authentication Using OAuth 2.0
      • Microsoft 365 modern authentication
      • Automatic Registration
      • Manual Registration
    • Connect with Global Admin
    • Connect to Office 365 with full access permission
    • Connect to Office 365 with CSV file option
    • Connect to Office 365 as single user mailbox
  • Connect to Exchange server for multiple mailboxes migration
    • Connect with Global Admin
    • Connect to Multiple user using CSV file
    • Connect using full access permission
    • Connect individual users for Single / Specific user Migration
  • Connect to Hosted Exchange for its Migration
    • Connect with Full Access permissions
    • Using multiple user credentials with CSV file
    • Connecting to Individual user for its migration
  • Knowledge Base
    • IceWarp to Office 365 migration
    • Zimbra to Office 365 migration
    • AOL Emails to Office 365 migration
    • Zoho Mail to Office 365 migration
    • GoDaddy to Microsoft 365 migration
    • ProtonMail to Office 365 migration
    • cPanel to Office 365 migration
    • Rackspace to Office 365 migration
    • Plesk to Office 365 migration
    • Barracuda to Office 365 migration
    • AWS Workmail to Office 365 migration
    • 123 Reg to Office 365 migration
    • Bluehost to Office 365 migration
    • Dovecot to Office 365 migration
    • hMailServer to Office 365 migration
    • BigRock to Office 365 migration
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    • Rackspace to Gmail migration
    • Zoho to Gmail migration
    • Rackspace to AWS migration
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    • Posteo to Office 365 migration
    • Tiscali email to Office 365 migration
    • Tiscali email to Gmail migration
    • BT email to Office 365 migration
    • Open xchange email to Office 365 migration
    • Cox email to Office 365 migration
    • BigPond email to Office 365 migration
    • ATT email to Office 365 migration
    • Frontier email to Office 365 migration
    • Charter email to Office 365 migration
    • Horde email to Office 365 migration
    • T-online email to Office 365 migration
    • Virginmedia email to Gmail migration
  • Set Office 365 Impersonation rights
    • Using PowerShell commands
    • Using Office 365 GUI
  • Set Exchange Server Impersonation rights
    • Exchange 2007 and below
    • Exchange 2010, 2013, 2016 and 2019
    • Set using Exchange Server GUI
  • Incremental Migration
  • Exchange Throttling Policy
  • Map the Mailboxes
  • Multifactor Authentication
    • Enable MFA in Office 365
    • Create App password for MFA
    • Disable Security Defaults
    • Disable MFA in Office 365
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  3. Migrate Horde emails to Office 365 (Microsoft 365) - Fast and Secure
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Migrate Horde emails to Office 365

Looking for a reliable way to migrate your Horde emails to Office 365 (Microsoft 365)? This step-by-step guide helps you complete the migration smoothly while keeping full control of your data. It explains the process in a clear and practical manner, making it easier to migrate emails from Horde to Office 365 with accuracy and zero downtime. Whether you are an IT administrator, a business user, or an individual looking for an improved email environment, this guide provides the right information to help you perform a secure and hassle-free migration.

Horde Groupware Webmail Edition, part of the cPanel webmail suite, is a widely used email client that provides essential email management along with basic task and calendar features. While it supports everyday communication needs, many organizations are now shifting to modern cloud platforms for improved performance and security.

Horde email to Office 365 migration

With the growing adoption of Microsoft 365, businesses are increasingly opting for migration from Horde to Office 365 to take advantage of its advanced security, scalability, and collaboration capabilities. This migration enables access to modern productivity applications, enterprise-level data protection, and consistent availability across multiple devices. As a result, migrating from Horde to Office 365 has become a practical step for organizations looking to enhance communication, strengthen security, and support modern workplace productivity.

Though the process might seem challenging, especially without a built-in manual method, the good news is that automated solutions such as EdbMails IMAP migration tool make this task straightforward. Ready to learn how to transfer your Horde emails to Office 365? Let’s dive into the details.

User Query

"I have been using Horde Webmail for managing my emails, and now I need to migrate all my emails, including attachments, to Office 365. Can anyone help me with the detailed steps to complete this migration? I’m new to this process and would really appreciate a step-by-step guide to ensure everything transfers without issues." - Jane, New York

  1. Why should you Migrate emails from Horde to Office 365?

    1. User interface (UI): Horde's interface is functional but lacks modern design elements. Office 365 offers a streamlined, intuitive UI that enhances user experience with clear navigation and easy access to emails, tasks, and calendars, boosting productivity.
    2. Storage: Horde has limited storage, forcing users to manage inbox space manually. Office 365 provides scalable storage solutions, eliminating concerns about email limits and ensuring seamless archiving of important emails and attachments for future access.
    3. Spam filtering: Office 365 outperforms Horde with its advanced spam filtering and security features. It effectively blocks phishing attacks and malicious emails, ensuring a cleaner inbox and protecting your data from cyber threats with built-in defenses.
    4. Integration: While Horde operates independently, Office 365 integrates smoothly with the entire Microsoft ecosystem. This connectivity enables seamless collaboration across Word, Excel, Teams, and OneDrive, allowing real-time sharing and access to essential tools.
    5. Accessibility: Horde’s web-based access limits usage to a single platform. Office 365 offers cloud-based access, ensuring you can view, send, and organize emails from any device such as a laptop, phone, or tablet boosting productivity from anywhere.

    These reasons make Office 365 the ideal choice for migrating from Horde email. EdbMails offers a secure and easy solution for seamless Horde email to Office 365 migration.

  2. Professional Solution for Exporting Horde email to Office 365

    Migrating emails from Horde to Office 365 can seem overwhelming, but with the right automated solution, the process becomes simple and efficient. EdbMails is a powerful tool that streamlines this migration, making it accessible to both professionals and beginners. It ensures that your emails are transferred seamlessly, without any loss of data or functionality. The tool offers a smooth migration process that guarantees accuracy and reliability, making the transition to Office 365 hassle-free.

    EdbMails IMAP migration tool simplifies this migration with its user-friendly interface for migrating emails from Horde to Office 365. With delta migration, it only transfers changes made since the initial migration, saving time and reducing data transfer. Its automatic mailbox mapping ensures mailboxes are correctly mapped, preventing errors. Advanced filter settings let users select specific emails based on criteria such as date, subject, or attachments, ensuring only relevant emails are moved. Additionally, EdbMails enables migration with zero downtime, keeping your email communication uninterrupted. This makes the transition smooth, efficient, and secure, with full control over the process, ensuring zero disruption to your business operations.

  3. Horde email to Office 365 Migration Plan

    Planning is one of the most important steps before you begin the Horde email to Office 365 migration. Here is a checklist of points to consider before you migrate.

    • Determine the size of the data and the number of mailboxes you want to migrate.
    • Make a list of all the data from the Horde email that you want to transfer.
    • Create appropriate user mailboxes on Office 365 and assign licenses to them.
    • Ensure you have enough network capacity and bandwidth to migrate.
    • Communicate the migration plan and flow to your end users.
  4. Horde email to Microsoft 365: Pre-migration activities

      1. Find the IMAP server name of your Horde email server. You can find this information from your server’s dashboard settings or by connecting your email system to Outlook.
      2. Have the users email address, passwords, IMAP hostname and port number.
      3. Create mailboxes on your target Office 365 server. You can choose the option to automatically create target mailboxes in EdbMails. If you prefer to create them manually, refer to the links below.
        1. Add users and assign licenses to Office 365 users
        2. Assign Microsoft 365 licenses to user accounts
      4. If you have a custom email domain from your hosting provider to which you want to migrate and receive emails, you must add and verify the domain on Office 365.
         Steps to add a custom domain to Office 365 and Steps to add DNS records to connect your domain.
      5. Configure Office 365 to send and receive large messages.

         Follow the steps to increase the message size on Office 365 to 150MB and see tips to optimize IMAP migration to Exchange online

        .
  5. Step-by-Step Guide to Migrate Horde emails to Office 365

      • Step 1: Download and install EdbMails IMAP migration software

        • Download and install EdbMails on your computer.

          EdbMails software installation

        • Launch the EdbMails application on your system.
        • Enter your registered email ID and password, then click ‘Login’. If you are using EdbMails for the first time, choose ‘Start Your Free Trial’ to proceed with the trial version.

           Note: ThThe trial edition provides access to all key features and allows migrating up to 30 items per folder. To enable unlimited migration, purchase IMAP migration license from the official EdbMails website.

           Click here to know IMAP Migration Pricing Details.

          After completing the purchase, close the application and open it again. Sign in using the same email ID and password used during the license purchase to activate the license successfully.

          EdbMails software login

        • Select the option ‘IMAP (Gmail, Outlook & more) Migration’.

          Select ‘IMAP Migration’ option

        • Select ‘IMAP to Office 365 Migration’.

          Select ‘IMAP to Office 365 Migration’ option

        • When you start a migration, the system automatically assigns a default job name. If needed, you can modify it for better tracking and organization, especially when managing multiple migrations. Simply click on ‘New Job’ and provide a custom name.

          IMAP Job Name’ option

      • Step 2: Connect to the source Horde email server

        • To migrate one Horde account, select ‘Single User / Account Migration’, then choose the appropriate connection method such as ‘Connect to IMAP Server’ or ‘Connect to POP3 Server’ based on your setup. Click ‘Next’ to continue with the process.

          Connection method

        • You can obtain your Horde server connection details from the Outlook mail client if the account is already configured, or directly from your server control panel. In most cases, the hostname will be in the format mail.userdomain.com, and if needed, you may also use the server’s IP address.
        • For IMAP connections, select port 993 and make sure SSL/TLS encryption is enabled to ensure a secure connection. Then enter the email address and password of your source account to connect successfully.
        • EdbMails does not save or store your credentials and relies on secure OAuth 2.0 authentication when logging in to Office 365.
        • Click the ‘Login’ button to proceed.

          Connect to single user account

        • To migrate multiple Horde mailboxes in a single process, choose ‘Multiple (Bulk) Users/Accounts Migration’, then select the appropriate option for connecting to source IMAP Server such as ‘Connect to IMAP Server’ or ‘Connect to POP3 Server’.
        • After selecting the method, click ‘Next’ to continue.

          Connect to multiple user

        • Click ‘IMAP Migration CSV File’. It will load the sample CSV file to your local drive.

          download sample csv file

        • Open the CSV file and fill in the necessary details, including the email address, password, IMAP server hostname, and port number for each mailbox. After completing the entries, save and close the updated CSV file.

          modify csv file

        • After updating the CSV file, save it and close it.
        • Then, click the 'Load Modified CSV File' button, open the updated CSV file and click ‘Next’ to proceed.

          load modified CSV file

      • Step 3: Select the mailboxes or folders to migrate

        • Choose the mailboxes or specific folders you wish to migrate, then click ‘Next’ to continue.

          Click Add New Connection

      • Step 4: Connect to target Office 365 server

        • Select the ‘Add New Connection’ option to set up a new connection to the target Office 365 account.
        • If a connection has already been configured, just select it from the list and click ‘Connect to Existing’ to proceed.

          Click Add New Connection

        • EdbMails provides flexible migration options, allowing you to migrate primary mailboxes, archive mailboxes, and public folders as needed.
        • Choose the appropriate connection settings and click ‘Next’ to continue with the authentication process.

          Select required connection option

        • Choose the authentication method based on your requirement.
        • Complete the sign-in through the official Microsoft login page, where your credentials are securely verified using OAuth 2.0.
        • Click ‘Login’ to proceed.

          Connect to the target Office 365 server

        • Authenticate on Microsoft sign-in page.

          Microsoft sign-in page

        • EdbMails automatically loads mailboxes, making the setup process fast and convenient.
        • Because of Microsoft API limitations, the automatic option can display only up to 100 mailboxes at a time.
        • In larger environments or when you need to add specific additional mailboxes, you can choose the CSV file method.
        • Loading mailboxes through a CSV file allows manual selection and provides complete control over the process.
        • Click ‘Next’ to proceed.

          Select the option to load the mailboxes

        • Step 5: Horde to Office 365 mailboxes mapping

          • Select a preferred option to map the source mailboxes and folders with their corresponding mailboxes and folders on the target Office 365 account.

            Choose mailbox mapping option

          • EdbMails lets you automatically create the required mailboxes in your target Office 365 account.
          • It also automatically maps your source Horde mailboxes and folders to the matching ones in Office 365, making large migrations easier to manage.

            IMAP server to Office 365 mailboxes mapping

        • Step 5: Start Horde to Office 365 migration

          • Verify the mailbox mapping, then click the ‘Start Migration’ button to begin the migration process.

            Start cPanel to Office 365 migration progress

          • Click the ‘View Logs’ button to access the full migration report. The report includes comprehensive details such as mailbox mapping, a summary of the overall migration, and the item count for each migrated mailbox and folder.

            Start cPanel to Office 365 migration progress

  6. Horde email to Office 365 Post-migration Tasks

    • Step 1: Modify MX records to direct email to Office 365.

      Update MX records for directing email to the new server. Additionally, configure the Autodiscover record to ensure that migrated mailboxes connect smoothly with email clients like Outlook.

    • Step 2: Set up a new Outlook profile for users in the new domain

      If users encounter issues connecting Outlook to Office 365 mailboxes, manually configure their Outlook profiles in the new domain.

  7. Horde email to Office 365 migration troubleshooting

     For troubleshooting, check out our knowledge base articles. If you have additional questions, browse the FAQs or engage with our customer care team for personalized assistance.

Benefits of EdbMails for Horde email to Office 365 Migration

  • Retain Meta Properties

    EdbMails ensures that all meta properties such as sender, recipient, subject, date, and other important attributes are retained during the Horde email to Office 365 migration process. This guarantees that the integrity of your email data is maintained and no crucial information is lost during the transition.

  • No File Size Restrictions

    With EdbMails, you won’t encounter file size limitations when migrating Horde emails to Office 365. This flexibility allows you to migrate large mailboxes without worrying about size restrictions, ensuring a smooth and uninterrupted migration for all your email data.

  • Batch Transfer

    EdbMails supports batch migration, enabling the transfer of multiple mailboxes simultaneously. This feature reduces migration time and ensures efficiency when handling large numbers of accounts, making it a great choice for businesses needing to migrate large volumes of email data quickly.

  • Clear Navigation and Immediate Feedback

    The intuitive user interface of EdbMails ensures clear navigation throughout the migration process. Real-time feedback allows users to monitor progress, providing immediate updates on the status of the migration. This keeps the user informed and confident throughout the entire process.

  • Compliance with Data Retention Policies

    EdbMails ensures that the migration process complies with organizational data retention policies. It handles data securely, keeping email records in line with compliance standards. This makes it ideal for businesses needing to meet legal or regulatory data retention requirements during migration.

     Learn more about EdbMails IMAP migration Software.

Frequently Asked Questions

  1. How long does the Horde email to Office 365 migration take?

    The duration depends on migration time, mailbox size, number of accounts, and network speed.

  2. Will my attachments and folders be preserved?

    Yes. All emails, folders, attachments, and metadata (such as sender, date, and subject) are fully preserved, ensuring complete data integrity after migration.

  3. Is there downtime during migration?

    No. EdbMails enables zero-downtime migration, allowing users to continue sending and receiving emails while the transfer runs in the background.


Additional resources

  • Plesk to Office 365 migration
  • Barracuda to Office 365 migration
  • AWS Workmail to Office 365 migration
  • 123 Reg to Office 365 migration
  • Bluehost to Office 365 migration
  • Dovecot to Office 365 migration
  • hMailServer to Office 365 migration
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 In this manual

IntroductionMigration ReasonsMigration SolutionMigration PlanPre-Migration ActivitiesMigration StepsPost-Migration TasksMigration TroubleshootingBenefits of EdbMails

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