How to Import EML to IMAP Server Step-by-Step

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  • Updated on August 20th, 2025

Summary: When you manage the bulk data full of EML files, it can be complex when it is done manually, as it increases the chances of losing important emails or attachments. When you import EML to IMAP Server, that is the best way to keep everything in one place while ensuring smooth access from multiple devices. In this guide, we explored two effective methods. The manual method of Thunderbird is free, but there are extra steps, and it is time-consuming. Whereas The Aryson EML Converter Tool offers a quick, secure, and reliable way to import EML files to IMAP without data loss.

What are EML and IMAP?

An EML file is a simple file format that saves a single email along with its format, content, and attachments.

IMAP is a server-based email system that lets you access the same mailbox from your phone, computer, or web browser while keeping everything connected.

Why Migrate EML Files to IMAP Server?

Here are a few reasons people usually move their EML files into an IMAP account:

  • All emails stay in one place instead of being scattered across folders and devices.
  • You can open the same mailbox from your phone, laptop, or tablet.
  • The original format and folder structure are preserved.
  • Accidentally deleted an email? Importing backed-up EML files brings them back.
  • For businesses, centralizing emails on IMAP improves security and compliance.

Two Ways to Import EML to IMAP Server

There are two main routes you can take:

  1. Manual import through Thunderbird.
  2. Automated utility: the Aryson EML Converter Tool.

Method 1: Transfer EML Files to IMAP Server Using Mozilla Thunderbird

Thunderbird is a free desktop email client that supports IMAP. You can use it to upload your EML files into a synced IMAP folder.

Steps to Import EML Files to IMAP Server:

  1. Firstly, install the latest version of Mozilla Thunderbird.

    Firstly, install the latest version of Mozilla Thunderbird.

  2. Navigate to the Account Settings and click on Add Mail Account.

    Navigate to the Account Settings

  3. Similarly, enter your email and password, then choose IMAP.

    enter your email and password

  4. Once added, right-click the account and create a new folder.
  5. Locate your .eml files and drag and drop them into this folder.
  6. Lastly, Thunderbird will push these messages to the server in the background.

Drawbacks:

  • Slow if you have thousands of emails.
  • Can create duplicates.
  • Performance drops during big imports.

Method 2: Easily and Safely Import EML to IMAP Server

If you have too many emails to move or just want an easier process, using the Aryson EML Converter Tool makes the job simple. It allows you to import many EML files at once without worrying about losing anything. This technique also keeps your folder structure the same, so everything looks organized. You can even filter emails by date or sender’s name to save time. The tool works on both Windows and Mac; it can also save your attachments. The software can also convert EML to Word, PDF, CSV, etc.

Steps to Import EML Files into IMAP Server:

  1. Install and launch the Aryson EML Converter Tool on your pc.

    Install and launch the Aryson EML Converter Tool

  2. Select the option to upload your EML files or an entire folder.

    Select the option to upload your EML files

  3. You can preview the content before the conversion by clicking on preview.

    You can preview the content

  4. Choose IMAP as the saving option in the drop-down menu.

    Choose IMAP

  5. Similarly, you have to enter your IMAP server details and log in.

    you have to enter your IMAP server details and log in

  6. Now, you can apply filters and start the conversion by clicking on the Convert button.

    Now, you can apply filters and start the conversion

Conclusion

When you import EML to IMAP Server, it results in making your emails easier to manage, safer, and accessible from anywhere. Thunderbird works well if you only have a small batch of files and don’t mind a manual process. But if you’re handling thousands of emails or want to avoid errors altogether, the Aryson EML Converter Tool is the better option. It’s faster, accurate, and saves you from the hassle of duplicates or missing data.

Frequently Asked Questions:

Q.1 What tools are recommended for importing EML to IMAP?

Ans: You can use tools like the Aryson EML Converter Tool, which is highly recommended. It supports bulk imports, keeps your data secure, and requires minimal technical effort.

Q.2 Why should I import EML to an IMAP server?

Ans: Importing EML files to an IMAP server helps you access all your emails from any device and keeps them synced in one place. It also reduces the risk of data loss and makes email management much easier compared to handling separate EML files manually.

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About The Author:

As a lead technical writer, I know the technical problems faced by office and professional users. So, I decided to share all my technical knowledge through this blog. I love helping you with tough challenges when dealing with technical issues.

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