How to Migrate Roundcube to Office 365

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  • Updated On:
    June 19th, 2025
  • Read Time:
    5 minutes

Summary: While the ability to migrate Roundcube to Office 365 may seem complicated, but is simple. Users who wish to utilize the advanced features offered by Microsoft’s cloud-based service should make this switch. Doing this will enhance email management and team collaboration. But, how can the user make this switch? There are two ways to do it: either manually or by using a professional IMAP Backup Tool. Read the following blog to learn about why this migration process is essential and how it works. 

Roundcube is a web-based email client that allows users to manage and read their emails through a web browser.

Office 365 is a cloud-based service, thereby supporting remote working. This tool is integrated with applications like Word, Excel, PowerPoint, Outlook, etc. It is a safe, secure, and nowadays highly demanded platform for professionals and businesses. 

Need for Roundcube to Office 365 Migration

Migrating Roundcube to Office 365 is a smart choice for those who require security, scalability, and advanced email functionalities. Here are the reasons why one needs to do it:

  • Office 365 allows users to access files and presentations from any location.
  • For teams working on the same project with others, Office 365 makes real-time communication across teams easy. 
  • Users with a subscription plan can utilize many Office 365 advanced productivity features.
  • Office 365 is equipped with powerful security tools such as device management, encryption, and threat detection.

Ways to Migrate Roundcube to Office 365

There are two methods for transferring emails from Roundcube to Office 365. The manual methods using Microsoft Outlook is available. Another one is by using a dedicated and secure tool. Users can choose either of the two methods depending on their specific requirements.

Manually Move Roundcube to Office 365 

This process involves first configuring Roundcube emails in Outlook. Then, exporting the Outlook data to PST and then uploading the PST Files in Office 365. To use this method, user should have administrative rights. 

Follow the step-by-step instructions to transfer Roundcube emails to Office 365:

Step 1: Configuring Roundcube Email in Outlook

  1. Open MS Outlook on your PC.
  2. Now, click on File > Add Account and enter your Roundcube email ID and select Let me set up account manually.
  3. Then, choose IMAP and enter the server settings correctly. 
  4. Follow the on-screen instructions to complete the setup.

Step 2: Export Outlook Data to PST

  1. Open Microsoft Outlook on your system.
  2. Go to File > Open & Export > Import/Export.
  3. Then, select Export to a file and click Next.
  4. Choose Outlook Data File (.pst).
  5. Now, select the folders linked to your Roundcube webmail account.
  6. Choose a destination to save the file and click on Finish.

Step 3: Upload the PST File in Office 365

  1. Start by downloading AzCopy and generating the SAS URL from the Microsoft 365 Compliance portal.
  2. Now, upload the PST Files to Microsoft’s cloud storage using AzCopy.
  3. Prepare a CSV format for the PST import mapping file.
  4. Now, in Microsoft Compliance Center, create a PST Import job.
  5. You can also apply the filters to control the data.
  6. Finally, start the Import process to transfer Roundcube email to Microsoft 365.

Limitations: This method is not for Outlook for personal accounts. Also, any incorrect server details may not establish a connection between the client and the server. 

Professional Way to Move Email from Roundcube to Office 365

A dedicated IMAP Backup Tool will help you export emails from Roundcube into Office 365 quickly and efficiently. Users can simply add all of their email accounts from different providers and then, back up data together. Not only this, users can backup their IMAP Emails into numerous different formats. It is widely compatible with software and is an extremely convenient solution for this migration. 

These are the steps to export Roundcube email to Office 365:

  1. Install the IMAP Backup Tool and run it.
  2. Go to Import CSV. Select the required User’s ID. Then, click Next.
  3. A screen opens up containing all the folders of your selected file. 
  4. Now, choose the folder you want to migrate. Then, click Next.
  5. Select Office 365 from the drop-down menu. Click Next.
  6. Enter your Username and Password for your Office 365 account and log in.
  7. Then, map your source account mailbox to the destination account. Click Next.
  8. Lastly, click Convert, and migration begins.

Conclusion:

This blog has outlined the best ways to move email from Roundcube to Office 365. The manual method is one option, but it comes with several limitations. Opting for the IMAP Backup Tool will ensure efficient and error-free migration while ensuring data integrity. This tool also allows users to migrate bulk email messages with attachments. Not only this, but it also detects duplicate emails and deletes them. 

Related Post: Export Emails from Roundcube to Outlook.

Frequently Asked Questions:

Q- How do I export emails from Roundcube to Outlook 365?

Ans- Follow the steps to export emails from Roundcube to Office 365:
1. First, configure Roundcube Email in MS Outlook.
2. Then, export the Outlook data to PST format.
3. Next, upload the PST Files in Office 365.

Q- Which is the best software to move emails from Roundcube to Office 365?

Ans- The IMAP Backup Tool is the best software to back up and move Roundcube emails to Office 365 and other email clients. Not only this, but it also supports exporting to various file formats while maintaining data integrity and reliability.

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About The Author:

Raj is a skilled technical writer who makes complicated topics easy to understand. With experience in email and cloud migration, he creates clear and engaging content that helps readers learn about technology. His work is trusted by many and has been featured on well-known tech sites.

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