A Quick Guide to Import PST to ProtonMail without Outlook

Ritu Roy | Email Backup Email Conversion email migration How to's Outlook Software Technology | 4 minutes read | Last updated on February 8th, 2023,
import pst to protonmail

Are you dealing with issues while using the Outlook email client? If yes, then there is no need to worry about it. Here you can learn how to import PST to ProtonMail without Outlook. You can do it by converting Outlook PST files to ProtonMail cloud account.

Many users are facing many problems while working with MS Outlook. They are looking for other alternatives. Fortunately, ProtonMail meets all the requirements of a user to handle their mailboxes.  

“I am working with Microsoft Outlook and have plans to move Outlook emails to ProtonMail. The reason is obvious, MS Outlook works in a desktop-based application, while I need a cloud environment due to the security of my mailboxes. Hence looking for a solution that can directly import PST file to ProtonMail cloud account. Kindly suggest to me any solution that can help me to solve my query”.

Best Solution – CubexSoft PST to ProtonMail Converter Software

You can completely import and export Outlook email to ProtonMail cloud platform using CubexSoft PST File Converter Tool. The software will provide users a direct option to forward Outlook emails to ProtonMail without Outlook. It allows to convert Unicode PST files that can be imported into all the latest versions of MS Outlook 2019, 2016, 2013, etc. The method involves the use of a standalone application to migrate emails from Outlook to ProtonMail with 100% accuracy. It is strong enough to direct fetch information from Outlook email client and then save it in the target mail platform. The chances of data loss, content manipulation, and information loss are zero while using this software.

You can free download the software from the below button:

Free Demo Edition: One can test the whole working of this software using its free trial version. The free demo will allow the users to convert the first 25 items from Outlook PST to ProtonMail without any cost. If you need to import multiple PST files from Outlook to ProtonMail cloud account then you need to first activate this software using a product key. Complete the purchase process and you will get the activation code within a minute via email.

Simple Steps to Import PST to ProtonMail Cloud Account

  1. Install & Run PST to ProtonMail Converter
  2. Load PST Files by clicking Add Files button.
  3. Select all desired Outlook PST mailbox folders.
  4. Click on the Export button to select the saving output option from the list.
  5. Select the MBOX or IMAP Server option from the list.
  6. Click on the Convert button to start the migration process.

Advanced Features of Outlook to ProtonMail Migration Tool

The PST to ProtonMail Tool provides users a direct option to export Outlook emails to ProtonMail. A user can enjoy multiple benefits and advantages with this application some of them listed below:

  • The software will give the users enhanced reporting with the actual count of emails exported to any specific folder.
  • You can save the converted files at their required destination path. Users can change the location by clicking on the Browse button.
  • The application has several advanced filter settings that can be applied to export only specific Outlook emails to ProtonMail program. You can apply these settings on the basis of To, From, Date Range, or Subject.
  • PST to ProtonMail Tool provides an interface that is user-friendly and easy to use. It does not matter if you are a technical or non-technical user. Because the application contains a few simple clicks and an intuitive environment that will guide users accordingly and help them in exporting PST files to ProtonMail as per their needs.
  • Also, no changes will be made to the original properties of Outlook emails while exporting to ProtonMail.
  • The PST to ProtonMail Tool will preserve the all folder hierarchy of mailboxes including folders & subfolders.
  • You can run the software on all the latest and below versions of MS Windows OS including windows 11, 10, 8.1, 8, 7, XP, Vista, etc. for both 32-bit and 64-bit OS editions. And also support all Mac Operating systems.
  • The software offers MBOX/IMAP saving output options, which users can choose as per their needs. If a user selects MBOX file format as a saving type, then the software will directly move all PST files to MBOX format. And, if a user picks IMAP Server as a saving option, then simply provide ProntonMail login details with IMAP Host and Port Number. Once this is done, the application will instantly export all MBOX files to the specified ProtonMail account without any data loss.

Understand the Full Working of PST to ProtonMail Converter Tool

Follow the following instruction to experience a hurdle-free journey while moving email work from Outlook to ProtonMail:

Step1: Download and run the PST to ProtonMail Tool on your machine.

Step2. Go to the ‘Add Files’ option to load PST files by using the Export Single File or Export Multiple Files buttons and click the Ok button to continue the process.

 Step3. The loaded Outlook PST files will show on the software screen with checkboxes. So, select the desired files to import PST file to ProtonMail and move to the Export button.

Step4. Now, go to Select Saving Output Option and select the MBOX or IMAP Server saving output option from the list.

Step5.  The import process of PST to ProtonMail is now live and users can track the ongoing conversion process from the Live Conversion Screen.


The article has explained a direct technique to import PST to ProtonMail. The PST to MBOX Converter is the right way for Windows and Mac users because it is a completely 100% safe and error-free solution. Also, the tool is secure and capable of exporting multiple PST files to ProtonMail at once. You can also try the demo version of PST to IMAP Migration Tool and understand the software’s working steps as well as features for free.  It will help to import the 25 PST files to ProtonMail free of cost.