Complete Solution to Migrate Exchange 2013 Mailbox to Office 365


Summary: Before users begin to Migrate Exchange 2013 Mailbox to Office 365, they must plan and choose the suitable method for migration. This will help users to move mailboxes from Exchange to O365 conveniently and get accurate output after mailbox migration. In this guide, we will help users to choose the suitable method for the organization to execute the on-premise migration process.

On-Premise Exchange to Office 365 – Overview

In June 2011, Microsoft presented Office 365 to the people, which is a cloud platform to store and communicate via emails. Since then, various users and the organizations that still use to operate with on-premises email servers, such as Exchange, are now shifting to it. This cloud service offers better security, infrastructure, remote accessibility, and more flexibility in terms of using it.

However, shifting mailboxes from Exchange online to O365 requires an ample amount of time and a proper understanding of it. As this is not an easy job to Migrate Exchange 2013 Mailbox to Office 365.

So, with the help of this guide, we will discuss a few methods to ease up and a professional solution to complete the task of exchange migration. 

What Encourages Users to Move On-Premise Exchange to Office 365

Plenty of reasons made organizations choose an Exchange server setup. The primary ones include the hardware management by the firms and control of all the Exchange data in the server. But we know that everything comes with some demerits, maintenance costs and security of the server is what the company has to manage, also it becomes an additional duty to provide 100% availability of the services.

Migrate Exchange 2013 Mailbox to Office 365 offers some advantages when we compare it to Exchange on-premises. We have listed some points below.

  • Shifting to a cloud platform offers more scalability without spending on the infrastructure. The user only has to purchase the email accounts for new users. It eliminates the entire process of buying additional storage and configuring everything.
  • It saves the user/companies money as they don’t have to maintain or worry about the security. A user only has to buy the Office 365 subscription plan and can focus on their work to scale up the business.      
  • Users don’t need to update the latest software versions. Office 365 itself takes care of all the updates. And it automatically updates the software.

So, in this guide, we have discussed a few methods to make it easier to migrate mailboxes from the exchange server to the cloud platform.

Self-Operating Solution for On-Premise Exchange to Office 365 Migration

In this section, we will explain the one-stop solution that can help users to move their online server data to Microsoft 365. By using the Modern Exchange to Office 365 Migration Tool which can migrate bulk mailboxes to O365 without losing any data.

Now, let’s go through the steps to use this tool, and follow them carefully.

  • Download and run the migration tool to migrate exchange 2013 mailbox to Office 365. And press the Exchange and Office 365 as the source and target platform.

  • On the same window (Setup), choose the categories and the date filters if needed. Now, click on Next.

  • Enter the Exchange server login credentials and exchange server version. And press the ‘Validate’ option for validation.

  • In the destination window, type the Office 365 login credentials. Now validate, press the Next button.

  • In the user window, use the given option which is Fetch Users, Import Users and Download Template to add users from the source account.

  • Now the user requires to import a group mapping file to create a mapping between the source and target domain groups.

  • After completing the mapping process, the user can see the list in which both the source and destination email addresses. Now, press the validate button.

  • Finally, after validation gets successful. Hit on the Start migration button to begin the on-premise exchange to Office 365 migration process.

What Does This Tool Offer to Swiftly Move On-Prem Mailbox to O365

  • This tool offers concurrent migration to move user accounts in batches.
  • Provides the option to select categories and date-range filters to migrate the selected data.
  • It also provides the Retry Failed and Re-Run Full migration option if it does not work properly in the beginning.
  • Provides the feature called Delta Migration which can be used to move newly arrived data.
  • After migration, the tool generates summary and detailed migration reports to monitor and check.

Conventional Methods to Move Exchange Mailbox to Microsoft 365

There are some types of exchange migration methods that can help users to complete the entire process of on-premise migration.

Cutover Migration method:

A cutover migration is only used for Exchange Server.  It is a simple method that is useful for small businesses which have less than 1000 users’ mailboxes. Using cutover migration users can swiftly complete the migration mailboxes. However, this method may not work at some time, depending on the size of the mailbox data it may consume more time than required for migration. This method is often used for On-Premise Exchange to Office 365 migration.

Staged Migration:

A staged migration is suitable for medium-sized businesses. This method helps to move user mailboxes from the exchange server (versions 2003, 2007) to Exchange Online. Once it completes, the mailboxes will migrate to Office 365.

IMAP Migration:

This migration method is used when there is an involvement of a non-Exchange mail system. IMAP can only migrate email messages. However, contacts, calendars, and tasks miss out during the process. This method is used for shortcut purposes to migrate from the older versions of Exchange Server.

Hybrid Migration:

Exchange hybrid migration is the most flexible method among all mentioned here. This method is generally used by large organizations. In this method, the Exchange admin user creates a hybrid Exchange Server deployment by building a coexistence between the local Exchange Server and Office 365. With this method, users can join Office 365 with your Exchange Servers and the existing Active Directory.

Now after knowing all the types of migration, the user can consider the most suitable option to migrate exchange 2013 mailbox to Office 365.


In conclusion, we can say that several firms use on-premises and now they think that migrating to the cloud platform could be game-changing for them. Now they want to migrate exchange 2013 mailbox to Office 365. So, in this article, we have explained the professional solution which makes it easier for users to migrate. Moreover, we have explained some migration types which can be used.   


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