Know How to Import EML to Mailfence with Attachments?

Sarabjeet Kaur | eml eml converter file conversion mailfence software technology | 5 minutes read | Modified on: 20-08-2025
how to import eml to mailfence

If you’re looking for a reliable way to import multiple EML files to your Mailfence account without any limitations, you’re in the right place. In this guide, we’ll introduce you to the most efficient and quickest method to import EML to Mailfence in just a few simple steps.

Mailfence is a safe and feature-rich email and collaboration platform based in Belgium. It focuses on privacy and data protection, adhering to some of the world’s strictest regulations. With built-in end-to-end encryption, Mailfence ensures that all your emails, contacts, calendars, and documents remain private and secure.

So, without further delay, let’s dive into the complete procedure.

Top Reason to Import EML to Mailfence Account

  • Mailfence offers end-to-end encryption, making it a safer platform to store and access your email data.
  • Importing EML files helps consolidate emails from different clients into one secure Mailfence account.
  • Once imported, your emails are accessible from any device through Mailfence’s web interface.
  • Mailfence complies with strict European data protection laws (GDPR), ensuring your imported data stays private.
  • After importing EML files, you no longer need to rely on local email clients or file viewers.
  • Moving your EML files to Mailfence provides a secure cloud backup of your important communications.

Import EML to Mailfence: Manual & Automated Approaches

Mailfence provides a manual option to import EML files, but it comes with a 50MB file size limit, which can be restrictive for users with a large number of emails.

However, there’s no need to worry. In this guide, we’ll also show you an automated method that lets you upload all your EML files directly into your Mailfence account quickly and without limitations.

Manual Methods to Import EML Files into Mailfence Account

There are two manual approaches you can use to transfer EML files to your Mailfence account. Below, we’ve outlined both methods step by step to help you perform the migration with ease.

Method 1: Directly Upload EML Files to Mailfence

  • Log in to your Mailfence account.
  • Click the Messages icon at the top of the dashboard.
  • Hit the More (⋯) tab and pick Import.
  • Then click the Import button to browse and upload your EML files.

Note: If your EML files are organized in folders, compress the folder into a .zip file before uploading to maintain the folder structure.

Method 2: Import EML Files via Thunderbird

This method uses the Thunderbird email client as a bridge since it supports EML files and can help move them to your Mailfence account.

Step 1: Import EML Files into Thunderbird

  • Open Mozilla Thunderbird on your system.
  • Right-click on your email account name or Local Folders, then select New Folder.
  • Name the folder and click Create Folder.
  • Right-click the newly created folder and choose: ImportExportTools NG > Import Messages.
  • Browse to the location where your EML files are saved.
  • Select all files (Ctrl + A) and click Open to import them into Thunderbird.

Step 2: Connect Thunderbird with Mailfence

  • In your Mailfence account, go to: Settings > Messages > External Addresses.
  • Select Gmail or IMAP (depending on your Thunderbird configuration).
  • Enter the email address and app-specific password to connect your Thunderbird account.
  • Once connected, simply drag & drop the imported emails from Thunderbird into your Mailfence folders.

Downsides of Importing EML to Mailfence Manually

  • File Size Restriction: Mailfence’s web import supports only up to 50MB per file or ZIP.
  • Time-Consuming: The Thunderbird process involves multiple steps and can be slow for large batches of EML files.
  • Not Ideal for Bulk Migration: Manually transferring hundreds or thousands of files can be tedious and error-prone.
  • Software Dependency: The Thunderbird method requires Mozilla Thunderbird and the ImportExportTools NG add-on installed on your system.

How to Import EML to Mailfence – Professional and Automated Approach

To move your emails into your Mailfence account without any file size restrictions, you can try the BitData Migration EML Converter. This powerful software lets users to load an unlimited number of EML emails effortlessly. Designed with advanced features, the EML to Mailfence Converter Tool ensures an easy and user-friendly experience for all users, regardless of technical expertise.

The EML to Mailfence Migration Tool supports EML files transferred from any mail client and guarantees accurate data transfer with all attachments intact. Additionally, it offers a free demo version so you can test its performance before making a purchase.

How to Import EML to Mailfence Account in Bulk: Stepwise Instructions

  1. Download and install the EML to Mailfence Conversion Tool on your Windows computer.
  2. Launch the application and click Add Files to load your EML files. You’ll see options to either Select Folders or Select Files, allowing you to import multiple EML files according to your needs.
  3. After selecting the EML files, they will appear on the left panel of the software interface with checkboxes for easy selection.
  4. Once your selection is complete, click the Export button. From the list of saving options, choose IMAP as the output format to migrate emails directly to your Mailfence account via the IMAP protocol.
  5. Enter the necessary Mailfence IMAP server details and your login credentials when prompted to establish the connection.
  6. Use the Advanced Filters to customize your migration such as filtering by date range, sender, subject, or excluding specific folders.
  7. Tick the Convert tab to start the migration task. The software will display a live progress window showing details like the current file, item count, conversion status, and size.
  8. When the conversion completes, an alert will notify you of the successful transfer. Click OK to finish the process.

Why Choose Automated Software Over Manual Techniques?

  • The EML Email to Mailfence Migration Tool supports EML emails exported from any mail client app, including Entourage, Apple Mail, Outlook Express, eM Client, Thunderbird, Gmail, and more.
  • One can quickly add multiple EML files or entire folders containing numerous emails using Select Files and Select Folder options.
  • It permits batch import of selected EML emails without any file size restrictions.
  • Advanced filters enable users to migrate specific emails by criteria such as Date Range, To, From, Subject, and Date.
  • It keeps the original folder structure and maintains all email attributes intact, including To, From, formatting, images, Date, Bcc, inline elements, Cc, Subject, and signatures.
  • Compatible with both Windows and Mac operating systems, ensuring broad usability.

Free Demo Available: Try the software before buying with a free demo version that lets you test the import process and evaluate its performance risk-free.

Final Thoughts

This comprehensive guide covers the most effective ways to import EML to Mailfence webmail account utilizing both manual as well as expert methods. Manual ways work well for a small number of EML emails under 50MB. However, if you need to migrate a large volume of emails, the expert EML File Converter solution is the best choice, enabling direct and hassle-free transfer to your Mailfence account.