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Written By
Simran Bhatia -
Approved By
Sonika Rawat -
Updated on
December 23rd, 2025 -
Read Time
7 minutes
Enterprises and organizations are constantly upgrading with changes in email communications. MDaemon has long been a popular choice for many, but now users want more reliable, scalable, cost-friendly email solutions, especially in the cloud. Thus, they tend to transfer MDaemon emails to Office 365 as it offers more features and flexibility, and keeps communication and data storage simplified. Hence, in this guide, we will learn how to transfer email clients without any data loss or modifications.
MDaemon is a on-premise mail server handling email tasks and groupware functions. It provides a mail server, webmail, groupware, instant messaging, and mobile device management for Windows users. In 1996, Alt-N Technologies developed this user-friendly interface for small and medium-sized businesses, but over time, its vulnerability to attacks demanded a shift.
Office 365, on the other hand, is a cloud-based platform that centralizes email, collaboration, compliance, and identity management. It is a leading mail service with a wide suite of applications ranging from OneDrive, SharePoint, to Teams, Outlook, and more. Unlike MDaemon, this modern email client can handle large amounts of data and provides more features. Thus, it is ideal to migrate MDaemon to Office 365.
Here are a few benefits that users get with switching to the Microsoft Office 365 environment:
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Common Challenges to Migrate from MDaemon to Office 365 There are a few technical complexities in making the switch between an on-premise and a cloud-based platform. Before discussing the methods, let’s first identify them:
Thus, we need effective methods to handle these properly and make the transfer. |
The manual method for migration prevails, but it is too technical and lengthy. Instead, using the SysInfo IMAP Backup Tool is a better choice to move emails quickly and securely with no loss. This software can transfer emails from all MDaemon, Outlook.com, iCloud, Gmail, SquirrelMail, etc., directly into Office 365. Additionally, it maintains folder structure and preserves data quality during the entire process with a user–friendly interface. Moreover, it has multiple advanced features that make migration a lot simpler.
First, check out how this software functions and migrate your mailbox data successfully.

Real World Scenario
A mid-sized fintech firm with 180+ MDaemon mailboxes faced downtime during its migration to Office 365. With the SysInfo IMAP Mail Backup Tool, they were able to transfer emails without downtime or loss in no time. The batch mailbox migration finished with precision, and no emails were lost in the process.
There is a manual way for this migration, but it has the following prerequisites:
Once you have these, proceed with the steps below to transfer MDaemon emails to Office 365:
Make sure you have admin access for both accounts to migrate.
Prepare a list of mailboxes, user accounts, distribution lists, and other special considerations.
Add domains to your Office 365, configure, and verify their ownership. Furthermore, create user accounts and mailboxes.
Disable email services on MDaemon so that new data doesn’t generate, and inform users about the migration schedule and downtime.
Later, export mailbox data with built-in tools or third-party softwares in EML format.
Change the MDaemon extracted emails to PST format native to Office 365 with a third-party software.
Establish a connection between MDaemon and Office 365, create migration endpoints, and configure them.
After that, divide the migrated data into several batches, and assign the target and source batch for each mailbox on different criteria.
Initiate the migration batch from the M365 Admin Center and monitor its progress. Verify the integrity once it completes.
At last, update DNS records for delivery and configure MX records and other DNS settings to route emails to Office 365.
As said, it is a very complex, hectic, and lengthy process. Also, has no data security and is unsuitable for non-technical users and bulk migrations.
Transfer MDaemon emails to Office 365 to modernize communication and use a more user-friendly email application. The manual method is too uncertain and lacks the feasibility and scalability required for migration. Henceforth, use the IMAP Backup Software for a simplified and streamlined email migration between platforms. It gives reliability, is cost-efficient, and ensures complete migration.
Ans. You can transfer MDaemon emails to O365 either with the Office 365 Exchange Admin Center. Or using the strategic MDaemon to Office 365 Migration Tool.
Ans. The data transfer time depends on the mailbox volume, the internet speed, and the number of mailboxes. With the manual method, it may take longer, but with the expert tool, the process generally completes within a short time.
Ans. Yes, the folder hierarchy remains completely intact when you migrate MDaemon to Microsoft 365, only if using the IMAP Backup Tool.
Ans. The best migration method is the SysInfo IMAP Email Backup Tool. It has so many advanced features, filters, batch process capability, and ensures zero data loss and no downtime. Also, as it is used locally on the OS and has no storage, is 100% safe.
About The Author:
Simran Bhatia is a technical content writer engaged in writing clear, concise, and SEO-optimized content. With a background in computer science and a passion for writing, I thrive to deliver complex technical content in simple layman terms.
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