DBX to Office 365 – Import Mailbox Folders of Outlook Express to O365

Today many organizations are migrating their on premises business data to cloud as it offers numbers of benefits. However, it also includes lots of advanced planning to perform any migration to the cloud. When talking about cloud services and storage, the first thing that comes in our mind is Microsoft Office 365 suite. MS Office 365 is also a cloud service that offers access to different Office applications and allows the users to migrate on-premises data to cloud.

Let’s discuss in the following section about the DBX to Office 365 migration in detail. Read More

Migrate Outlook Express To Office 365

Outlook Express is an email service that offers a medium that allows different users to get connected with each other. Outlook Express enables users to send and receive emails for personal as well as for professional purpose.

Many organization used Outlook Express as source of communication, that helps different users working within the organization to communicate. Outlook Express creates DBX files which contain entire mailbox data/ emails, it creates different DBX file for each folders such as Inbox.dbx, Sent item.dbx, Draft.dbx, Deleted-item.dbx.

Although, Outlook Express save it’s data in on-premises storage devices, that takes considerable storage space of the server or the disk. To make storage space available for other important data, organizations can import DBX files to cloud(migrate DBX to Office 365). Business owners can migrate existing in-house Outlook Express email system to cloud which can be done by performing Outlook Express to Office 365 migration.

In the next section of this article we will go through the method to perform on premises Outlook Express mailboxes migration and the benefits & disadvantages involved in this migration process.

User Queries

Before we first discuss the methods to migrate DBX to Office 365, first let's understand the user concerns & queries on this transfer.

Benefits For Outlook Express To Office 365 Migration

  • Offers Unlimited Space: User can get unlimited virtual storage, from the view of any organization, it removes the need for storing personal copy of official documents that saves disk space and make data more secure from any damage.

  • Enhanced Availability and Accessibility: By migrating Outlook express DBX files to office 365, enables users to open mailbox from any location. It provides universal access to work from anywhere and anytime.

  • Eliminate Need For Additional Devices: Organizations spends lots of money on buying new devices and installing them. These devices also need maintenance in regular bases. By migrating email client data or other data on cloud, eliminates the need of infrastructure and maintenance. Office 365 offers a very cost effective way to store entire data of organizations.

Method To Migrate .dbx to Office 365

The DBX to Office 365 export is a way that can help to access OE email folders in Office 365. It makes easy for the users to access mailbox and it’s data from anywhere on any device such as from PCs, Smartphones, Tablets, Notebooks, etc. However, there is no direct way to import Outlook Express mailboxes to Office 365. Therefore, user can not export emails from Outlook Express to office 365 with manual procedure. But to overcome this limitation one can go for alternate solution, as there many third party tools that will help users in Office 365 email migration.

Before starting with the method for DBX file migration, one should consider the given points that will help them in completing smooth migration:

To import .dbx files To Office 365, firstly, one needs to convert Outlook Express DBX files in Outlook PST files and then needs restore PST files in Office 365. These two conversions are required for DBX to Office 365 migration because one cannot directly import DBX files in Office 365.

To convert DBX files to Outlook PST, onc can use DBX to PST converter and then can use Office 365 Restore tool that will import Outlook PST files in Office 365.

Steps Involved For DBX to PST Conversion:

  • Download and install DBX to PST converter tool.
  • Open and browse Outlook express DBX files in the software by using Add File option
  • Click on Export button to start the DBX to Outlook conversion
  • After clicking Export option, once the conversion is done successfully, the tool will display successful message for conversion.

After converting Outlook express files to Outlook, now user can use Office 365 Import tool, that will import PST to Office 365 account.

You can carry out the following steps to complete the import process of resultant PST file.

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  • Launch the third-party tool and the user interface will be displayed as shown below:

  • Now, continue the process by adding PST files into the tool using Add Files / Add Folder option. After that, enter Office 365 credentials corresponding to the PST file. Then, click on Next button.

  • Choose the mailbox items that you want to import under “Select Categories” section.

  • You can also apply other advance settings and click on Import button to start the process.

  • The software will display the progress status along with item count.

By using above two tool user can completely migrate their Outlook Express Mailboxes in Office 365.

Frequently Asked Questions

I need to upload my DBX file's data to Outlook on the Web, can I do so using this approach?

Yes, you can transfer DBX to Office 365 and then access your O365 account through Outlook on the web. This way you can access your DBX files on Office 365.

I hope my data will be secure during the migration using this method?

Yes, this method assures data security & the folder hierarchy as well as meta formatting stays intact during and after the migration of OE to Office 365.


DBX to Office 365 migration comes with lots of benefits. Many organizations choosing Office 365 office environment to store their on premises data as it offers collaborative environment, makes data more available and enhance the accessibility of business data universally . However, there is no direct way to import Outlook express to Office 365, that forces users to buy third party tools for migration.
We can say that the DBX to office 365 migration is quite lengthy, but the result that user will get after the migration is ultimately fruitful.