Migrating IMAP mailboxes to Office 365 is one of the most challenging tasks, as you cannot perform this migration without proper guidance and knowledge. But Microsoft takes care of this problem for you, it provides an efficient way to migrate IMAP mailboxes to Office 365 using Exchange Online PowerShell Commands. So, let’s have a look at how PowerShell works in migrating an IMAP mailbox to Office 365.
The IMAP to Office 365 migration using PowerShell consists of some important things that you should know:
There are some restrictions that apply to Exchange Online PowerShell while performing IMAP to Office 365 migration.
The IMAP to Office 365 migration involves several steps for its preparation.
Find the mailboxes that you want to migrate in an IMAP migration batch. For different IMAP servers, different formats are used to create a CSV file. Generally, the CSV file requires the email address, username, and password of each user.
For successful email migration, Office 365 needs to connect with the source email system using a migration endpoint. The migration endpoint defines the number of mailboxes to migrate and to synchronize simultaneously during incremental synchronization. You need to connect to Exchange Online to create a migration endpoint for IMAP migration. Use the following command in PowerShell to create an Endpoint.
First, create a migration batch using New-MigrationBatch cmdlet for an IMAP migration; it will start automatically if you include the AutoStart parameter. You can also start the migration batch by using Start-MigrationBatch cmdlet.
Use the following PowerShell command to automatically start the migration batch called “IMAPBatch1” with IMAP Endpoint.
Every email system uses a DNS record known as MX record to figure out where to deliver emails. During the migration process, the MX record points toward the source email system. Once the email migration to Office 365 is complete, point MX record towards Office 365. It will make sure that emails are delivered to Office 365 mailboxes. Moving your MX record also allows you to turn off your old email system.
There are some specific instructions to change the MX record for many DNS providers. It will take up to 72 hours for the email systems to recognize the modified MX record. So, you’ll have to wait 72 hours to proceed to the next step.
Once the MX records are changed, and the emails are routed to Office 365, you can inform users about their mails going to Office 365. Then you can delete the IMAP migration batch but verify the below points before removing the migration batch.
Now, run the following command to delete the migration batch.
You can learn more about the Remove-MigrationBatch cmdlet.
After removing the migration batch, verify whether it is completely removed or not. Run the following command to verify this:
Using the PowerShell command, you can move IMAP mailboxes to Office 365. However, this process is little daunting, and so you need technical expertise to perform it. Therefore, you need an efficient solution to move IMAP mailboxes to Office 365.
It is an efficient tool that is specially designed to migrate IMAP to Office 365 mailboxes. Even non-technical users can migrate their IMAP mailboxes to Office without any guidance. It is enhanced with unique and great features that make it one of the best IMAP to Office 365 migration tools. Some of its features include:
To know more about the tool, have a look at the working process of this software.
The complexity of PowerShell Command makes it challenging for non-technical users to perform IMAP to Office 365 migration. So, a third-party software is the only option that is suitable for every user. You can quickly migrate IMAP mailboxes to Office 365 using Kernel IMAP to Office 365 tool.