How to Backup ProtonMail Emails?

  Rollins Duke
Rollins Duke   
Published: April 24th, 2026 • 8 Min Read
Overview: This guide covers all expert-tested ways to backup ProtonMail emails with attachments, metadata, and formatting intact. Discover free & built-in methods to export ProtonMail emails to a computer. Along with a professional solution to get ProtonMail email backup in industry-standard formats like PST, PDF, EML, and archive Proton Mail emails to data to another email client.

About Proton Mail

Proton Mail is an email service used by over 100 million users across Germany, the USA, Switzerland, and many other countries worldwide.

Widely preferred by users for security, end-to-end encryption, easy access, and flexible free and paid plans.

Proton Mail has both a Webmail interface to access emails online and a desktop application known as Proton Mail Bridge to view emails offline locally.

Although Proton Mail is secure, users may want to backup Proton Mail to safeguard against data loss during migration or accidental deletion and to protect against potential hacks.

Why is Proton Mail Backup & Export Needed?

Practical situations where users need to export ProtonMail emails.

Real-life scenarios where this Proton Mail Backup Guide can prove helpful:

  • Before switching to a different service or a paid plan, backup protonmail emails.
  • Easy offline access to Proton Mail data – essential in server outages.
  • Safeguard Proton Mail data against accidental deletion, hacks, and other threats.
  • Businesses using Proton Mail as their email client, backup ProtonMail emails for legal compliance.
  • To preserve Proton Mail information before account termination.
  • For auditing or reporting purposes in enterprises.
  • To convert Proton Mail data into a shareable format.

4 Tested Methods to Backup Proton Mail Emails

The best way to export Proton emails depends upon one’s Proton Mail plan, mailbox size, urgency, and security compliance needs.

This covers reliable methods to backup ProtonMail emails:

  • Three Manual & Native Methods
  • BitRecover’s Secure ProtonMail backup tool

Each method is explained step by step, along with ideal use cases.

Proton Mail Export App

A legacy method to backup and easily migrate Proton Mail data.

It was a CLI-based tool compatible with both Mac & Windows devices. Users could earlier ProtonMail export all emails in MBOX and EML file formats in bulk.

However, it was discontinued in late 2023 and early 2024. Hence, no longer a feasible way to backup Proton Mail email folders in 2026.

Interface of older Proton Mail Import-Export tool to back Proton Mail emails.

Method 1: ProtonMail Export Tool

If you are skilled with command-line utilities, the native Proton Mail export tool is the most secure and fastest way if you need to export ProtonMail emails to a PC in JSON and EML format.

Follow these steps to backup ProtonMail emails:

  1. Download the ProtonMail backup tool.
  2. Extract the program and finish the setup.
  3. You need to run the proton-mail-export-cli.
  4. Enter your Proton Mail username.
  5. Log in with your Password – your password won’t be visible when entering.
  6. Enter your email password or security code if you have 2FA enabled in Proton Mail.
  7. Enter B to choose ProtonMail backup.
  8. Copy and paste the path where you need to save Proton Mail email data on your PC. – Keep “” intact.
  9. Type Yes if you have entered the correct path.
  10. Press any key to exit once the Proton Mail Backup is 100% complete.

Common Manual Method Limitations

  • Repeated login and authentication failure
  • Take days with larger mailboxes
  • Have a complex setup

Method 2: Backup ProtonMail Emails Using Webmail

To backup ProtonMail emails selectively or in small batches, using the Proton Mail Webmail interface is the easiest way.

Built-in Export Option to Download a Single Proton Email

  1. Log in to Proton Mail Webmail.
  2. Go to the email you need to back up.
  3. Click on More (the three horizontal dots icon).
  4. Click on Export.

Your ProtonMail email is backed up in EML format with an attachment.

The exported file is saved in the downloads folder of your desktop.

Print Option to Backup ProtonMail Emails

  1. Once logged in to the Proton Mail webmail.
  2. Open the email you want to save as a PDF.
  3. Click on the More icon (three dots).
  4. Choose the Print option.
  5. Browse the saving destination, name the file, and hit save.

Warning: Using the built-in Print option for Proton Mail Backup makes them shareable across devices. However, it does not preserve email attachments and metadata.

Method 3: Using Proton Mail Bridge

Proton Mail Bridge is a well-suited method to get a ProtonMail local backup if you have a paid Proton Mail account.

You need to connect Proton Bridge to desktop email clients, like Thunderbird, Outlook, or Apple Mail on Mac, to export ProtonMail emails.

Using Proton Mail Bridge to backup ProtonMail emails allows you to save them offline on a PC in formats such as PST, MBOX, EML, and PDF.

Steps to Follow:

  1. Download the Proton Mail Bridge on Mac, Windows, or Linux.
  2. Log in with your paid Proton Mail account.
  3. Once logged in, the Proton Mail Bride will create a Local IMAP server, SMTP server, username, and app password.
  4. Use these details to configure the ProtonMail account in desktop clients like Thunderbird.
  5. Finally, backup ProtonMail.

Real-World User Limitations

  • Configuration often returns a “failed to connect to server” error.
  • Manual intensive, although there is an option for bulk Proton Mail local backup.
Method 4: Professional ProtonMail Export Tool

BitRecover Email Backup Tool is the best Protonmail backup tool chosen by millions of home users, businesses, and IT experts to archive Proton Mail emails or desktop or to other cloud email services in bulk.

With our industry-grade solution, you can instantly export ProtonMail emails from multiple accounts at once without any mailbox size restrictions.

Download the BitRecover Proton Mail export tool today to back up your email from Proton Mail. Free trial is aslo available to export ProtonMail emails from each folder.

How to Backup ProtonMail Emails? Using Pro Tool
  1. Download & Install the ProtonMail backup tool on your Mac or Windows device.
    download and open the protonmail backup tool on your PC - The image shows the interface of the tool with source panel on the left
  2. Select Proton Mail from the email source. Enter your Proton Mail email address and your App Password to log in.
    (Note: An App Password is strictly required to log in to Proton Mail via third-party software. Your standard account password will not work. You can find this dedicated App Password generated and displayed directly on the Proton Mail Bridge application.
    login with you email id and password to backup Proton Mail
  3. Select the Proton Mail email folders that you want to backup Proton Mail emails.
    select all the proton mail folders that you want to backup
  4. Choose from 35+ saving options available in the Proton Mail export tool.
    select the option from the drop down menu of the protonmail backup tool in which you want to export the proton mail data
  5. Press the Backup button.
Proton Mail Backup Methods – Comparison Table
Method Export Options Speed Works on Free / Paid Ease of Use Best For
Native Export Tool EML + JSON Medium to Slow (very slow for large mailboxes) Free & Paid Difficult Advanced users, developers, compliance exports
Proton Mail Webmail EML (single email), PDF (print) Extremely Slow (one email at a time) Free & Paid Very Easy Individuals, few emails, quick manual backup
Proton Mail Bridge + Email Client PST, MBOX, EML, PDF (via client) Medium Paid only Moderate (manual configuration) Paid users, desktop-client users
BitRecover ProtonMail backup tool PST, MBOX, EML, PDF, 35+ formats Fast Free & Paid Very Easy Businesses, bulk backup, migration, non-technical users
Why Choose a Professional Tool for Proton Mail Backup?

Based on our research, BitRecover ProtonMail backup tool is the recommended way to download Proton Mail emails due to the following reasons:

  1. Secure and compliant with HIPAA, GDPR & CAPA.
  2. High-end algorithms for fast Proton Mail Backup.
  3. Filter option to backup ProtonMail emails based on date, to/from, search terms, and subject.
  4. You can back up unlimited Proton Mail emails without fail.
  5. Batch mode to download emails from multiple Proton Mail accounts at once.
  6. Backup Proton Mail data with complete integrity – include attachments, formatting, signature, and hierarchy.
Conclusion

Whether you’re preparing to migrate Proton Mail or want to protect your Proton Mail data, this guide will help you discover the best way to backup Proton Mail emails for your needs.

Although there are various methods like Proton Mail’s native export tool, Proton Bridge, manual export, and print, using the BitRecover ProtonMail backup tool is the most reliable method.

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