How to Migrate MDaemon to Microsoft 365 Safely? Quick Guide

Published By Jamie Kaler

Approved By Rollins Duke

Published On April 21st, 2026

Reading Time 8 Min Read

This guide is specially designed to help IT administrators and decision-makers to successfully migrate your MDaemon to Microsoft using the most reliable and updated approaches available today. In this article, you will get correct enterprise-level migration using Microsoft 365 Admin Center, understand the limitations of IMAP-based migration, know automated methods that help you to transfer emails, contacts, and calendar to make it a perfect and hassle-free migration.

Migrating from MDaemon to Microsoft 365 is not a common task as it contains your business records including communication, contacts, meeting and appointments that can affect and directly connect to your business growth. IT Administrators often face challenges during migration such as mailbox corruption, downtime and incomplete transfer when performing outdated or unverified approaches.

The good news is a proper verified approach and Modern Authentication based migration is fully reliable to execute and no risk of losing any data. This guide covers all expert recommended approaches that can skip common pitfalls and helps you perform MDaemon to Microsoft 365 migration without any data loss.

Why Migrate from MDaemon to Microsoft 365?

Organizations are increasingly migrating from MDaemon to Microsoft 365 to get a more secure, modern and reliable email environment. Here are key reasons:

It eliminates dependency on specific machines and also reduces server maintenance cost.
Microsoft 365 offers minimal downtime and continuous email access.
For more secure access as compared to outdated basic authentication methods.
Easily add or manage users as your organization grows.
Specially reliable to hold mailbox data for legal, auditing and compliance purposes.

How to Perform MDaemon to Microsoft 365 Migration Manually?

The manual migration is officially provided by Microsoft to migrate emails from MDaemon to Microsoft 365. This approach uses IMAP protocol to transfer mailbox data from source server to Microsoft 365. Before starting the migration, ensure that the MDaemon server is properly configured.

Enable IMAP server on the MDaemon Server.
Verify IMAP port (default 143 for non-SSL, 993 for SSL)
Ensure all user mailboxes are accessible via IMAP.
Disable any IP restrictions or firewall block that may prevent Microsoft 365 from connecting.
Login Microsoft 365 Admin Center and create all user mailboxes that will be migrated.
Assign Exchange Online licenses to each other.
Ensure mailboxes are active and ready to receive data.
Create a CSV file.
Sample format: EmailAddress, Username, Password.
[email protected], [email protected], password123
Save the file in CSV format and ensure there are no formatting or extra spaces.
Go to the Exchange Admin Center and navigate to Migration.
Select EndPoints and click on New(+) and select IMAP.
Enter MDaemon Server details including server, portname, and encryption.
Validate and save endpoints.
Go to Migration and select batches.
Click on New Migration and select IMAP migration.
Upload the CSV file as you have created with user details and choose the migration endpoint.
Set batch settings and click on Start Migration to begin the process.

Limitations of Manual Migration

IMAP support only allows to transfer emails, this approach not reliable to migrate contacts, calendars, tasks or notes.
Folder structure may not be preserved especially when dealing with complex mailbox hierarchies.
Required creation of EndPoint, CSV file and batch management including complexity.
Large mailboxes often fail or make slow migration due to IMAP and server-side limitations.
Require proper configuration of Modern Authentication which may not be good for common users.

In the Enterprise environment, these limitations are not affordable as it increases workload, and higher risk of incomplete data transfer. That’s why organizations often skip manual methods and look for MDaemon to Microsoft 365 Tool when dealing with critical business data.

Why Choose MDaemon to Microsoft 365 Migration Tool Over Manual Method?

Feature	Manual Method	MDaemon to M365 Migration Tool
Data Migrated	Emails only	Emails, Contacts, Calendars, Tasks & Attachments
Technical Complexity	High(Require CSVs, EndPoints & Batch setups)	Low(Intuitive UI, Self-Guiding Process
Speed & limits	Slow(Subject to Microsoft IMAP throttling	Fast(Direct API, No file size restrictions)
Bulk User Migrations	Require complex manual batch migration	Seamless “I am Admin” automated mapping

Expert-Suggested MDaemon to Microsoft 365 Migration Tool

RecoveryTools MDaemon Converter is the most reliable way to migrate MDaemon to Microsoft 365 especially when dealing with large mailboxes or enterprise-level data. MDaemon to Microsoft 365 Migration Tool specially reliable to migrate including emails, contacts, calendars, attachments and folder hierarchies without performing complex configuration.

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Prominent Features of the MDaemon to O365 Migrator

Mapping of Mailbox Folders: The software offers the I am Admin option to migrate MDaemon data for multiple users in an Microsoft 365 Administrator account. The amazing thing about this utility is that it supports manual Mailbox Mapping during the bulk data process. However, the selected mailbox data will be migrated & automatically mapped with the user’s mailboxes.
Copy to Default Folders: The software provides the option to manage the correct folder structure or hierarchy. It provides a separate Copy to Default Folders option which will maintain the source folder structure, i.e., 1:1 at the destination. All emails of the Inbox-to-Inbox folder, Drafts to Drafts folder, Sent Items to Sent Folder, or Outbox-to-Outbox folder of the O365 account.
Easy Authentication & Account Permissions: The software supports easy authentication, i.e., it can easily connect to your destination Microsoft 365 account with the credentials you provide to the software. The tool ensures Zero downtime, i.e., during the process, one can easily access their mailbox & can do any operation as per choice.
Easy to Use & Secure Process: The MDaemon to Microsoft 365 migration tool comes up with a very intuitive user interface and acts as a self-guiding application. It also supports folder mapping into various other popular languages, i.e., Dutch, French, German, Spanish, Swedish, or Norwegian. The process will take place via SSL/TLS encrypted connection.
Advanced Filters: The application provides advanced settings for setting filters to migrate MDaemon to Microsoft 365 selectively. Some of the major fields are Data Range, From, To, Subject of emails, etc. Apart from that, users can also export some specified folders to reduce time by excluding unwanted emails.

Working Steps to Perform Direct MDaemon to Microsoft 365 Migration

Install & run the tool on your system.
Click “Select Files” or “Select Folders” to browse from source files.
The utility will display all the MDaemon files, simply check once before migrating.
Choose “Microsoft 365” from the “Select Saving Option” list.
Set “Advanced Filters” based on Date Range, From, To, and Subject to migrate only desired folders.
Enter “Microsoft 365” login credentials, i.e., Username & Password. Click “Next” to proceed.
A confirmation box appears after the successful completion of the process. Click the “OK” button.
At last, the software will generate a Saving.Log report which will include all the information regarding the MDaemon to Microsoft 365 migration process including Start Date & Time, Saving Type, Source File Location, Items Converted, Destination Path as well Final Status of the Process.
You can access your resultant data in the destination path folder.

How to Migrate Multiple Users from MDaemon to Microsoft 365 Account?

The tool also allows users to move mailbox data from multiple user accounts through user mapping. To understand more about multiple-user migration, follow the below steps.

Choose the “Select Folder” option & upload the email folder containing multiple user data.
Check the option “I am Converting Multiple Users” & browse the locally saved mailbox.
*Note: To perform mapping & move multiple users’ accounts, you must select these options.
Select the users to migrate from the given list.
Choose “Microsoft 365” as a saving option & enter the login credentials. Click the “Connect” button.
*Note: For multiple user conversions, users need to select the I Am Admin option & need to provide admin login credentials.
After authenticating the account, select the source & destination users to map the accounts.
*Note: You can also perform user mapping by using the manually entered CSV file. Select the Use CSV Mode option for the same.
At last, hit the Convert button to migrate MDaemon to Microsoft 365.

Similar Article:

How to Export Emails from MDaemon to Thunderbird Client?

How to Export Emails from MDaemon to EML Format?

After going through the above process, we can easily conclude this is one of the simplest solutions available for those who are trying to transfer all their mailbox items from MDaemon to the O365 account.

This tool doesn’t require users to have high-level technical knowledge to operate it. Users just need to enter their Microsoft 365 login credentials, i.e., Email Id & Password.

Summarizing

In the above article, we have discussed the best available solutions to migrate MDaemon to Microsoft 365 account. While the manual method exists but it contains multiple limitations. Whereas, the software is completely easy-to-operate and provides a free trial version. In demo version, users can convert first 25 items from MDaemon mailbox folders to Microsoft 365. Buy a suitable license according to your requirements to perform unlimited MDaemon to Microsoft 365 migration easily. For any query, contact our support team.