EdbMails EDB Recovery and Migration software
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    • Exchange Server MigrationMigrate Exchange 2007, 2010, 2013, 2016, 2019 to Office 365 tenants. Also, migrate between Exchange servers and PST
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    1. Home
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    3. How to migrate IceWarp to Office 365 (Microsoft 365)?

    IceWarp to Office 365 migration

    Steps to migrate from IceWarp server to Office 365

User Manual

  • Overview
  • System Requirements
  • 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
    • 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
  • Connect to IMAP
    • Connect IMAP Single Server
    • Connect IMAP Multiple Server
  • Enable less secure apps 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
    • Liquid web to Office 365 migration
    • Dreamhost to Office 365 migration
    • Comcast to Office 365 migration
    • Google Vault to Office 365 migration
    • Enterprise Vault to Office 365 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

EdbMails software for IceWarp migration

EdbMails Office 365 IMAP migration is a Microsoft partnered software that can help you migrate from IceWarp to Office 365 without the complexities of manual migration methods. It can help you connect to the source server, select the mailboxes and migrate to the target server from a user-friendly interface. You can directly migrate your emails, private and public folders, messages, attachments and switch to Office 365 in a few clicks. The following step-by-step migration guide describes the migration operation from IceWarp to Office 365.

User Query

We frequently receive user requests asking us how to migrate all emails from Icewarp to Office 365. The entire operation requires careful planning and preparation if you want to do it the stress-free way.

Hello, EdbMails team, we are currently using the IceWarp email server and would like to migrate to Office 365. Could you help us or provide us with a reference article so that we can try it on our own? We'd also like to do it smoothly, with no downtime or interruptions. Thank you very much.

QUICK LINKS

Zimbra to Microsoft 365 Migration Guide Migrating AOL mailboxes to Office 365 Zoho Mail to Office 365 migration Moving GoDaddy Office365 to Microsoft Office365 How to Migrate ProtonMail to Office 365 Account How to Migrate cPanel Email to Office 365? Migrate From Rackspace to Office 365

IceWarp to Office 365 migration

IceWarp to Office 365 migration plan

Planning is one of the most important steps before you begin migrating your data to Office 365. Prepare the environment and have a backup plan in place to avoid potential risks and data loss. Here is a checklist of points to consider before you migrate.

  • Determine the size of the data and number of mailboxes you want to migrate.
  • Make a list of all the data and permissions from IceWarp 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.

Pre migration activities for IceWarp to Office 365 migration

  1. Find the IMAP server name of your IceWarp server. You can find this information from your server’s dashboard settings or by connecting your email system to Outlook.
  2. Make a complete backup of all your users' data, configuration and messages on IceWarp.
  3. Assign the Organization Management role group in Exchange online to the admin user.
  4. Before you migrate to Office 365, ensure that you create mailboxes for your users in your organization and assign suitable licenses to them.

     Add users and assign licenses to Office 365 users

     Assign Microsoft 365 licenses to user accounts

  5. If you plan to migrate the source Public folders to Public folders on Office 365, ensure that you create and configure the Public folder mailboxes on the target server.

     Create Office 365 Public folder and assign mailbox user

  6. Ensure that the admin account on the target Office 365 server has the impersonation rights to migrate mailboxes and Public folders.
  7. 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.

  8. 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.

How to migrate IceWarp to Microsoft 365?

There are two methods to migrate IceWarp to Office 365:

  1. Create a CSV file of your user mailboxes from the source server and migrate with an IMAP connection.
  2. Migrate your mailboxes from an Outlook PST file to Office 365.

EdbMails IMAP migration application supports both the aforementioned methods and enables you to migrate directly from the source to the target.

Steps to migrate IceWarp to Office 365 by using IMAP method

If this is the first time you’re migrating with EdbMails, the migration is a full migration. On subsequent migrations from the same source to the target, the migration is incremental.

EdbMails provides the following additional options to help you customize the IceWarp to Office 365 migration task.

  1. Step 1: Download and install EdbMails IMAP migration software setup
    • Download EdbMails and install the application on any computer that is connected to the source and target environment. You can also perform the migration operation by installing EdbMails on a non-Exchange computer

      installation

    • Launch the application and click 'Login' or 'Start Your Free Trial'

      Login to EdbMails

    • Select the 'IMAP migration' option.

      IMAP Migration

       See a detailed list of EdbMails system requirements for IMAP migration.

  2. Step 2: Connect to a single user or multiple users mailbox on IceWarp
    • If you want to migrate a single user, enter the Host Name, Port Number (993 for SSL), and account credentials to connect to the IceWarp server as shown.

      Connnect to IceWarp single user mailbox

    • If you want to migrate multiple mailboxes, select 'Multiple (bulk) Users/Accounts Migration'. Download the sample CSV file and add in the required details such as mailbox name, password, host name and port. Load the CSV file into EdbMails and verify the list mailboxes to continue.

      Connect to multiple IMAP mailboxes

       Steps to connect to single and multiple users in EdbMails IMAP migration
  3. Step 3: Select the mailboxes and connect to the Office 365 tenant
    • Select the mailboxes and folders from the left panel to migrate to Office 365
    • Click 'Migrate to Office 365' to set up the connection with the target server

      Click migrate to Office365

    If this is the first time you’re migrating with EdbMails, the migration is a full migration. On subsequent migrations from the same source to the target, the migration is incremental.

    EdbMails provides the following additional options to help you customize the IceWarp to Office 365 migration task.

    1. Additional Include and Exclude Filter Options
    2. Filter emails by Date: Migrate to Office 365 by applying the Date filter
    3. Filter emails by Size: Exclude emails from migration larger than a specified size
  4. Step 4: Connect to target Office 365 as Global Admin User

    EdbMails supports both modern and classic authentication. Connect to the target server by selecting 'Auto' or 'Manual' registration for modern authentication and the connection method as Mailboxes, Public folder or Archive Mailbox. You can also connect to the mailboxes by loading a CSV file.

     Connect to Office 365 server using secure modern authentication

    Connect to Office 365 server

  5. Step 5: Map the mailboxes between the source and the target

    The mapping activity in EdbMails can automatically match and map the mailboxes and folders between the the IceWarp and Office 365. This activity saves time when you’re migrating a large number of mailboxes.

    Mailbox mapping

  6. Step 6: Start the migration to Office 365 from IceWarp

    Start and monitor the migration operation after you complete the mailbox mapping. Finally, verify the count of migrated emails, folders and mailbox items with EdbMails text-based log report.

Steps to migrate IceWarp to Office 365 by using PST migration

EdbMails can also assist you in migrating to Office 365, if you have mailboxes exported as PST files from the IceWarp server. Download and run EdbMails if it hasn't already been installed on your system. The following steps outline how to migrate PST files to Office 365.

  1. Step 1: Select the migration method as Office 365 migration

    On the EdbMails migration selection popup, select the 'Office 365 migration' option.

  2. Step 2: Add PST files in bulk to migrate to Office 365

    To add the PST files, close the 'Connect to Office 365 (Source)' connection window and click 'Migrate PST to Office 365' at the bottom.

    Click on Migrate PST to Office 365

  3. Step 3: Connect to target Office 365 as 'Global Admin User'

    EdbMails supports both modern and classic authentication. Connect to the target server by selecting 'Auto' or 'Manual' registration for modern authentication and the connection method as Mailboxes, Public folder or Archive Mailbox.

     Connect to Office 365 server using secure modern authentication

  4. Step 4: Map and migrate mailboxes and folders to Office 365

    The mapping activity in EdbMails can automatically match and map the mailboxes and folders from the PST file to Office 365. This activity saves time when you’re migrating a large number of mailboxes. After you complete the migration, verify the count of the migrated items, folders and mailboxes with the help of EdbMails log report.

     Learn more about EdbMails PST to Office 365 migration

Post-migration tasks

  1. Step 1: Update the MX records to point to Office 365

    If you have not done this step previously, change the DNS records known as MX records to enable email and receive messages on the target Office 365 server. In addition, configure the Autodiscover record to allow Outlook to connect to the migrated mailboxes.

  2. Step 2: Create a new Outlook profile for users in the new domain

    Configure the Outlook profile for each user in your domain if Outlook has problems connecting to Office 365 mailboxes.

Advantages of using EdbMails for IceWarp migration

  1. Incremental and no-duplicate migration

    If you plan to migrate IceWarp to Office 365 in batches, you will almost certainly be migrating to the same target from the same source. In this case, EdbMails incremental migration feature prevents duplicates of the mail items that you migrated before.

  2. Advanced include and exclude filters

    You can use EdbMails filter and folder settings to customize your migration and migrate selected emails by Date, Sender Address, Subject, Attachment. Use the exclude folder option to exclude standard folders such as Junk, Conversation History, Drafts etc.

  3. Easy and direct migration operation

    In comparison to manual methods, the IceWarp to Office 365 migration with EdbMails is direct and a one-to-one operation from the source to the destination avoiding intermediate hops.

  4. Exact folder hierarchy and data formatting

    EdbMails is the best solution for Office 365 migration because it preserves all of your folder hierarchy and data formatting and encoding with no changes to either the source or target. After the migration, you can find all your emails and folders on the target in the exact same way as they were present on the source.

  5. Free trial with 24x7 customer support

    If you want to test IceWarp migration on your own, download EdbMails free trial version or contact our free customer support, who will walk you through the entire process and assist you step by step. It's simple.

     Learn more about EdbMails IMAP migration features
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