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Migrate MSG Files to ProtonMail with Attachments Intact

Admin • April 15, 2025 • 5 Minutes Reading

There are a lot of users who want to migrate MSG files to ProtonMail due to its advanced privacy policies that keep the data between the sender and receiver only. However, a lot of bulk MSG file owners do not know the right way to import MSG to ProtonMail, and thus, for them we prepared this complete guide. Therefore, this blog post has a brief introduction to ProtonMail, the reasons behind MSG to ProtonMail transfer, the pro tool for this, and their advantages or disadvantages, respectively. Hence, to know everything in detail, read and follow the complete page.

Introduction to ProtonMail: Before learning the right way to migrate MSG files to ProtonMail, let’s first get a quick glimpse of ProtonMail. So, it is basically an extremely privacy-conscious email service provider that ensures end-to-end encryption of the conversations or items shared among users of the platform. It is mainly used by journalists, activists, businesses, and other people who value online privacy a lot. The unique factor here is that not even ProtonMail itself can access the shared data, and it has no ads or tracking possibilities at all.

Objectives to Migrate MSG Files to ProtonMail

  • The process to import MSG to ProtonMail results in a centralized email storage where the scattered MSG data is saved in dedicated folders for better management.
  • One of the major reasons behind this MSG to ProtonMail migration is that ProtonMail offers high-tech email security services in which there is no chance of data leakage.
  • ProtonMail works on mobile, desktop, or even on the Web, which eliminates the dependency factor, whether it is on a particular device or on Microsoft Outlook.
  • Doing this also archives the important MSG data files and makes them accessible for long-term future use.

Manual Way to Import MSG to ProtonMail

There are two phases in the conventional way to migrate MSG files to ProtonMail, which primarily includes the conversion of MSG data into the EML file format and then importing it to ProtonMail. The quick steps to use this manual method to migrate MSG files to ProtonMail are as follows:

Phase 1: Change the MSG Files to EML Format

  1. Open the local location where MSG files are saved.
  2. Right-click on any one MSG file that you want to transfer.
  3. Now, choose the Rename option present in the drop-down menu.
  4. Further, manually delete the .msg file format and write .eml there.
  5. This will bring a notification on the screen that you need to confirm.

Phase 2: Import EML to ProtonMail Account

  1. Once done, open the ProtonMail account on your device.
  2. Further, click on the folder where you want to migrate MSG files.
  3. Then, drag the recently converted EML file and drop it into that folder.
  4. At last, wait for a while so that the file can properly sync there.
  5. With this, the process to migrate MSG files to ProtonMail completes.

Drawbacks of the Manual Way

  • This solution is very complex for a non-tech user as it has multiple phases and lengthy steps.
  • It consumes a lot of time and resources, which makes it an inefficient solution to migrate MSG files to EML format.
  • There is no security of MSG data or its layout as it indirectly converts the extensions of the files.
  • It does not support bulk conversion and attributes of the MSG files, which hinder the data integrity.
  • Thus, it cannot be used for professional drills to import MSG to ProtonMail, as it is very unreliable.

Professional Way to Migrate MSG Files to ProtonMail

No doubt that the conventional method has a lot of limitations, and therefore, every industry expert suggests MSG file owners use MSG Converter software. It is very easy to use and has 35+ saving options, which include standard file formats as well as direct-to-email client options. The best thing is that it supports bulk action and runs on all operating systems, which makes it a versatile solution. Thus, the quick steps to use this tool are as follows:

  1. Download the MSG to ProtonMail Transfer tool on your device.
    install the tool
  2. Select the MSG files or folders using the given selection options.
    add msg files
  3. Choose IMAP from the list of saving options.
    choose imap
  4. Fill out the required IMAP details of the ProtonMail account.
    imap credentials
  5. Apply the advanced filters for specific migration and click on Convert to Save MSG to IMAP account.
    migrate msg files to protonmail

Note: Apart from the IMAP solution, the user can also choose the EML saving option to convert MSG files to EML and then transfer them using the drag-and-drop method as mentioned in the manual way in Phase 2. 

Why Is the MSG to ProtonMail Import Tool Reliable?

  • It runs even in offline mode, which ensures that users’ productivity is not compromised.
  • The tool saves users’ time, energy, and other resources as well, which makes it an efficient alternative.
  • It has 35+ saving options, which makes it a one-stop solution to deal with MSG data swiftly.
  • There is also a free demo version of the tool available, which allows users to test the efficiency of the tool.
  • The file-saving location and naming option make the output more organized and easily accessible.
  • This MSG to ProtonMail import tool is also free from viruses, which makes it safe to use and work with.
  • There are dedicated MSG data selection modes and advanced filters that ensure the specific import of MSG files to ProtonMail.

Conclusion

By the end of this blog, it is very clear that using the automated solution to migrate MSG files to ProtonMail is the best solution. It is a completely safe and reliable solution that guarantees quality output in minimum time. However, on the other hand, the conventional way is more like putting important data at stake to lose its integrity, which, of course, no one wants. Hence, downloading the tool, exploring its functioning, and getting the licensed version for the professional drill is the right way to import MSG to ProtonMail.