MDaemon Migration to Office 365 Account in 2026
MDaemon migration to Office 365 is indeed possible to do on your own. However, it is not a direct server-to-server transition that you would expect. Instead, it involves a confusing O365 admin interface that takes multiple tries to get the hang of.
Moreover, the only other alternative manual method is to instruct every user to move emails via drag and drop from inside an email client. Take a look at a query from your peer that we resolved:
User Query: Hi, I have been surfing the internet for manual solution to migrate emails to Office 365 from MDaemon but when I tried it practically it was out of my league. So, to make the task short and simple now I am looking for a professional solution that can help me. Please someone share it with me, it would be a great help. Thanks!
Both the Admin center approach and the client style transfer are unsuitable for an organization that wants to switch services fast. That’s why I also have an automated utility that assists in transfers, but more on that later. Before I show you the tool, let’s get a brief overview of what makes MDaemon and M365 different from each other.
This is important as it explains the difficulty behind the transfer task we are about to do.
Brief Overview of MDaemon and Microsoft 365 Platforms and Prerequisites
On the one hand, MDaemon is primarily an email server application for Windows users. That comes with a user-friendly interface and is accompanied by client-side protocol support. In addition, MDaemon also provides email storage, mobile device management, messaging, migration, and email security features.
Whereas, Microsoft Office 365 is a web-based email client which is quite useful for large organizations and individual users. Since it is a cloud-based email service, it provides various facilities to its users. Users prefer to migrate MDaemon to Office 365 as large file sizes will require constant maintenance of MDaemon mailboxes. However, a Microsoft 365 user can easily maintain all types of file sizes.
MS Office 365 can be accessed from anywhere at any time by any user for data management due to cloud services. It stays on top with 365 days of availability and other features.
Prerequisites:
- Ensure you have admin access for both the MDaemon and O365.
- Enable IMAP access on MDaemon server if you haven’t already.
- Validate the domain inside the M365 Admin Center.
How Professionals Migrate MDaemon to Office 365 / Microsoft 365?
Technically, a manual method is not possible for this migration, so we suggest using a professional solution for all MDaemon users. Hence, it would be possible to migrate MDaemon email to O365 using the Best IMAP to Office 365 Migration Tool.
The operation of this tool is quite easy and simple, even a novice or a beginner can perform the migration through it. Furthermore, this software has inbuilt features to customize the migration which you can use as per the requirement.
All these advanced and inbuilt features of this tool make this software unique and quite useful. However, there is a free demo version available to get an idea with limited MDaemon users migration on Windows machines.
Important Note: For all Mac users, there is an Organized & Secure IMAP Email Migration Tool that can be operated on all Mac OS versions. This will help to ease the MDaemon to Office 365 migration process on Mac OS 12.0, Mac OS 11.0, Mac OS 10.8, and below versions.
Prominent Features of the Automated Tool
- Best automated solution for email data migration from MDaemon to Microsoft 365 account for multiple or specific emails. This utility is even helpful to migrate ProtonMail to Office 365 account if the requirement occurs.
- Furthermore, the tool always ensures complete data integrity of both source and destination accounts without data loss.
- Facilitates users with all mailbox email folders migration to Microsoft Office 365 account. The Mac-based tool provides a selection option for MDaemon folders to migrate.
- Furthermore, this tool works fine on Windows operating machines or servers. It is generally compatible with Windows 2012/2016 Server, and Windows 10/11 (64-bit) editions.
- The tool completes the process without affecting email properties and attributes. Even, all the attached files are easily migrated to the selected MS Office 365.
- However, it never transfers the same MDaemon email twice, for that, it has a delta migration feature to eliminate duplicate chances. This will migrate only the new emails from the mailbox and skip the MDaemon emails that were already migrated.
Step-by-Step Guide for MDaemon to Office 365 Migration
Step 1. After installing the tool on a supported Windows machine, you can check out the options as Source and destination account. To move further, select the IMAP option as a source account and the Office 365 option as a destination from the screen.

Step 2. From below, click on the Email checkbox to migrate all MDaemon emails with attachment files. According to the requirement, click on the Date Filter button to migrate emails from MDaemon to Microsoft Office 365.

Step 3. Thereafter, tap the Other option as an IMAP server, and provide MDaemon user account details as asked for account validation.

Step 4. From the next screen, choose the Office 365 option as the IMAP destination account and enter the User email ID and password to validate, Tap next.

Step 5. Now, fetch the required Users and tap on the Start Migration button to successfully to migrate MDaemon to Office 365 / Microsoft 365 account in bulk.

Manual Method to Migrate MDaemon Emails to Office 365 Account
Step 1. Use administrative access to prepare the source MDaemon Server, remove all redundant data to prevent clutter from entering the O365 cloud.
Step 2. Plan migration so mailboxes, user accounts, distribution lists, and other data moves together. At thew same time inform users about the migration schedule and potential downtime.
Step 3. Ready Office 365 Environment by adding domains and verifying ownership.
Step 4. Disable email services on MDaemon during the migration process to prevent new data from being generated.
Step 5. Export Data from MDaemon such as calendars, contacts, and distribution lists.
Step 6. Convert data to Office 365 acceptable format
Step 7. Create migration batches if the data is too large and test the connection with help of a pilot project.
Step 8. Start Data Migration monitor the progress of each migration batch within the Office 365 admin center follow all the on-screen instructions as they appear. Don’t skip any as it may cause errors later.
Step 9. Once the migration completes, verify migrated data in O365 cloud.
Step 10. Don’t forget to update DNS settings and MX records so that they to point to the correct Office 365 endpoint for email delivery.
Conclusion
Here we showcased only the most viable options for MDaemon migration to Office 365. You could use the Admin portal but it confuses the average admin. I too avoid it whenever I can. The second user-led drag and drop operation isn’t any good either due to no post migration reports. That is why it is just better to use a professional solution to migrate MDaemon to Office 365 account. Use it and you will be able to complete email migration properly, that too without data modification.
Frequently Asked Questions
Q. Does MDaemon server continue to receive new messages while the current ones are being transported?
Yes, you can’t put a complete stop to all incoming emails. You can reduce by informing the contacts or scheduling the transfer at a time when there is less activity (like holidays or off hours). The best option is still the incremental delta migration present in the tool that automatically detects the new messages and brings them in the second run.
Q. What happens to MDaemon Server when all the messages move to O365?
Ideally you should keep it running for a few days after the migration completes to check for any issues. If none are found decommission and retire the hardware.
Q. Do contacts and calendar data also move to O365 from MDaemon?
No, you have to move them separately, or recreate them in the cloud again.