How to Import PST to Proton Mail? Complete Guide

Antonio Gosling ~ September 21, 2025 ~ 5 Minutes Reading

If the user is switching to Proton Mail, it is a good idea for the user to prioritize their security and privacy in the field of digital communication. However, if the user has used PST format, like Microsoft Exchange or any other email application that helps export to PST, then the user is likely to bring that email history with them. Proton Mail usually does not support importing PST files directly, on the desktop as well as web. But the user can import all the mentioned contents, which are present in a PST file, into Proton Mail by following a few different methods using professional software or Microsoft Outlook In this guide, we will get to know the most efficient and effective methods for importing a PST file into Proton Mail.

Why Do Users Import PST to Proton Mail?

There are various reasons why users import PST files into Proton Mail. Whether the user is performing this activity for migrating their email history, keeping backups, or consolidating accounts. By importing the PST files, users can get help in bringing their important emails into Proton Mail securely and in a private environment. Below are a few reasons for the same.

  1. Stronger Protection of Data: Migrating the data from Outlook to Proton Mail gives the user end-to-end encryption and a greater focus on privacy, which helps in protecting sensitive communications and personal information, and prevents the data of users for advertising.
  2. Recover Past Emails: The PST files contain some important data, which involves emails, contacts, and calendars from Outlook.
  3. Access to Old Records: The user may want to migrate their whole history of email from an Outlook to a Proton Mail account to have all their data in one secure platform.
  4. Professional Use: A few users or businesses migrate their PST files to Proton Mail just to store their emails safely, which are further required for legal records.

How to Import PST File to Proton Mail Using Outlook?

Let us go through “ how to import a PST file to Proton Mail” using Outlook. This method will definitely help the users in migrating their previous emails into the Proton Mail account safely and securely.  Below are some helpful steps

  1. Open Outlook. To load the PST file, go to File and click on Open Outlook Data File.
  2. Download and install the Proton Mail Bridge to obtain your IMAP/SMTP settings.
  3. In Outlook, add a new account using Bridge’s settings of IMAP/ SMTP to get Proton Mail connected.
  4. Now, migrate emails from PST to Proton Mail by dragging them into folder of Proton Mail in Outlook.
  5. At last, log in to Proton Mail online and check emails.

Limitations of the Manual Method

  1. Slow sync of large files.
  2. There is a need to move emails manually.
  3. It requires a Proton Mail Bridge.
  4. The structure of the Email folder may change.

How to Import PST in Proton Mail Directly?

If you are also searching for a direct way to import PST into ProtonMail, then it is recommended to use a professional and reliable tool, Jagware PST File Converter. This tool is designed to help users export Outlook PST emails. This can later be imported into ProtonMail through an email client by using ProtonMail Bridge. Here are guidelines for using this reliable and professional tool with ease.

  1. Download and install the recommended software.
    download and install
  2. Then select files or select folders.
    Select files
  3. Select the folders that you need to transfer and then click on Next.
    Select the folder
  4. Then, in the saving option, select IMAP from the below mentioned list below.
    Choose IMAP
  5.  Now, enter the login credentials of Proton Mail and then click on convert.
    add credentials

Advantages of Professional Software

  • This software is useful for converting Outlook data files to 21 file, email, and image formats.
  • It can export Outlook data with a 100% zero data loss.
  • Users can handle corrupt, orphaned and password-protected PST files for conversion
  • Provides the freedom to exclude system folders (like Inbox, Sent, Drafts, Contacts, etc.) while converting a PST file.

Frequently Asked Questions

Q1. Can Proton Mail be imported to a PST file directly?

A1. Users cannot import Proton Mail directly into a PST file, as Proton Mail usually does not support direct PST file imports. But users can make use of above-mentioned professional and reliable software.


Q2. What are the basic requirements for importing PST emails into Proton Mail?

A2. For importing the PST emails into Proton Mail, the user needs to have their PST files, an email client, and a Proton Mail Bridge, or they can make use of the professional tool for doing this.


Q3. Can Outlook help in importing PST emails into Proton Mail?

A3. The user can import PST emails into Proton Mail by installing Proton Mail Bridge, configure Outlook by using their Proton Mail account, and can also migrate their emails from a PST file into their Proton Mail folders.


Q4.Does PST to Proton Mail also import Contacts and Calendars?

A4. Yes, PST to Proton Mail migration also includes emails, contacts, and calendars using the above-mentioned tool.

Conclusion

If a user is thinking of “how to import PST to Proton Mail,” then this process can be completed by using an email client, or they can also use the above-mentioned tool. This method makes sure that all the previous emails are moved safely, maintaining ProtonMail’s privacy standards. After setting up, make sure that all your important emails have been migrated properly. After completion of this, users will have a secure and fully accessible Proton Mail account.