How to Combine and Convert Multiple Outlook Mailboxes Into Standard EML Files

Overview

Handling multiple Outlook mailboxes can be a real pain, especially when the emails need to be accessed through different email applications or archived for future use. While Outlook stores mailbox data in PST files, users often encounter compatibility problems migrating to email clients that support EML format. In this blog, we will discuss what PST and EML files are and why is it important to convert mailbox? Also we will discuss about different ways to convert mailbox either manually or automatically, best practices to enhance conversion quality and who are the major beneficiaries of this process.

Understanding PST and EML

Email programs use different file formats to store mailbox information.

PST (Personal Storage Table): is a proprietary file format created by Microsoft Outlook to store email messages, contacts, calendars, tasks, journals, notes and attachments.

EML (Electronic Mail Format): stores individual email messages, including their headers, formatting and attachments. It works with a lot of email clients, such as Thunderbird, Apple Mail, Windows Live Mail and more.

This often creates compatibility problems for users when they switch applications or distribute archived emails in different environments because these file formats are made for different email platforms.

Significance

By converting Outlook mailboxes to EML files, you can enhance the accessibility and compatibility with various email clients. Unlike PST files, EML messages can be opened independently without relying on Microsoft Outlook.

How to Combine and Convert Multiple Outlook Mailboxes Into Standard EML Files is a practical solution for users who want to migrate their email archives and maintain the integrity of messages along with the folder structure. Converting mailboxes helps with managing backups, sharing email and archiving for the long term.

Organizations with large volumes of email data benefit from greater flexibility, easier collaboration, and less dependency on a single email platform.

Manual Approaches

Manual Method 1: Emails Drag and Drop

Supported environments allow you to drag individual Outlook emails from Outlook into a desktop folder as EML-compatible message files.

Procedure

1. Open Microsoft Outlook.

2. Choose the emails you need.

3. Move the selected messages to a local folder.

4. Save the exported files of mails.

Benefits

· No extra software required.

· Ideal for exporting small volumes of email.

· Simple to use for occasional jobs.

Drawbacks

· Not efficient with multiple mailboxes.

· Folder hierarchy is not preserved.

· Slow if you have a large collection of emails.

Manual Method 2: Forward Emails to an Email Client that Supports EML Files

Users can send emails from one email account that is set up in Outlook to an email account set up in another email application.

Procedure

1. Setup same email account in outlook and other email client.

2. Forward or synchronize the emails you need.

3. Save the emails in the destination app.

Benefits

· No conversion software required.

· Useful for recent mails that are stored on the mail server.

· Small migrations are suitable.

Drawbacks

· Needs account synchronization.

· Archived PST data may not be transferred fully.

· Migration may change folder organization.

Manual Method 3: Saving Specific Emails

Outlook lets users save the individual messages separately.

Procedure

1. Open an email message.

2. Click Save As.

3. Choose an available email format, if supported.

4. Save the file.

Benefits

· Simple individual messages.

· Email content unchanged.

· No need for additional installation.

Drawbacks

· Not practical for thousands of emails.

· Repetitive manual work.

· Large mailbox conversions take a lot of time.

Software-Based Solution

If you have many Outlook mailboxes to manage, then the desktop conversion software is a more practical solution for organizations and individuals. DataVare PST to EML Converter Expert helps users to export Outlook PST files to EML format without loss of mailbox data and folder hierarchy.

Process

1. Install the program.

2. Include PST files.

3. Preview the mailbox content.

4. Choose the required folders.

5. Select EML as the output format.

6. Choose the destination location.

7. Initiate the conversion process.

Benefits

· Supports bulk mailbox conversion.

· Keeps folder hierarchy.

· Preserves email formatting and attachments.

· Enables selective folder conversion.

· Provides you with a preview of mailbox before export.

Limitations

· Must be installed on a Windows computer.

· Users should familiarize themselves with basic conversion options before starting.

Comparison

Manual methods are good for one-time exports for a few emails. Automated desktop solutions are better for converting multiple mailboxes efficiently, while keeping the mailbox organized.

Best Practices

Test PST File Integrity: Before you begin the conversion process, ensure that the PST files are not corrupted.

Mailbox Organization: Organize your folders and clean up those extra emails to save time with conversion.

Keep Backup Copies: You should always backup the original PST files before you export the mailbox data.

Convert Only Required Folders: Selecting only the necessary folders saves processing time and storage space.

Check the Converted Files: Check several converted EML files to ensure that email formatting, attachments, and metadata are correctly preserved.

Properly Store Converted Files: Exported EML files can be saved in well-organized folders for easy access and management in future.

Ideal For

This conversion process is helpful for many users and industries.

Users

· IT administrators

· Business professionals

· Office administrators

· Legal practitioners

· Accountants

· Researchers

· Email migration specialist

· Technical support teams

· Individual Outlook users

Industries

· IT

· Legal services

· Financial services

· Government

· Education

· Health Care

· Consultancy

· Production

· Real Estate

· Marketing agencies

If you are migrating away from Microsoft Outlook to another email system, you will have better compatibility and easier access to your archives of email data.

FAQs

1. Why to Convert Outlook Mailboxes to EML?

EML files are supported by many email clients, making email archives more portable and compatible across different platforms.

2. Can I convert multiple PST files at the same time?

Yes. There are many desktop conversion applications that allow you to batch process multiple Outlook mailboxes.

3. Will the attachments of an email remain after the conversion?

Most professional conversion solutions maintain email attachments, formatting and metadata during the conversion process.

4. Is it possible to convert selective folders?

Yes. Several desktop utilities let users export only selected folders, not convert the whole mailbox.

5. Do I need Outlook to open EML files?

No, EML files can be opened using many compatible email applications without Microsoft Outlook.

6. After conversion, what should be checked?

Verify folder structure, attachments, email formatting, timestamps, and message headers to make sure that the converted files are identical to the original mailbox.

Final Thoughts

The conversion of multiple Outlook mailboxes to EML files is better to access emails from one platform to another without the help of Microsoft Outlook. Manual methods are still appropriate for occasional or small-scale conversions but they are not efficient for large mailbox collections. Automated desktop solutions provide faster processing, better organization and improved preservation of mailbox data. DataVare PST to EML Converter Expert is one such desktop solution which supports organized mailbox conversion and preserves important email information. Depending on the size of the mailbox, migration needs and the accuracy needed during the conversion process, the conversion method is selected.