Converting EML files into MSG format helps users access individual email messages in Microsoft Outlook while maintaining important email information. If you need to convert EML to MSG , the right method depends on the number of emails, your Outlook installation, and whether you need to preserve attachments, sender details, and message format. EML files are supported by email clients such as Thunderbird and Windows Mail, whereas MSG is a message format associated with Microsoft Outlook.
In this guide, we will explain manual methods to convert EML files to MSG, their limitations, and an automated solution using the professional tool. Whether you need to convert a few messages or export multiple email files, these methods will help you choose a suitable approach.
Common Reasons to Convert EML to MSG
Outlook Compatibility: Users convert EML files to MSG to access and manage individual email messages in Microsoft Outlook.
Email Migration: Converting EML files to MSG helps users move email messages from clients like Thunderbird or Windows Mail into an Outlook-based workflow.
Preserve Email Information: Users may need to retain sender details, recipients, subject lines, message content, and attachments during email conversion.
Business Requirements: Organizations may require MSG files for email documentation, internal communication records, or specific business workflows.
Simplify Email Management: Saving emails as individual MSG files makes it easier to organize, search, share, and manage messages in Outlook.
Bulk Email Conversion: When users have hundreds or thousands of EML files, converting them into MSG format can simplify email organization and migration.
Email Archiving: MSG files can be useful for storing individual Outlook-compatible email messages for future reference and recordkeeping.
Method 1: Convert EML Files to MSG Using Microsoft Outlook
Microsoft Outlook can help you save an individual email in MSG format. This method is suitable when you have a small number of EML files and a compatible Outlook desktop installation.
Steps to follow:
Open Microsoft Outlook on your Windows computer.
Locate the EML file in File Explorer.
Open the EML file with Outlook, or drag it into an appropriate Outlook mail folder if your Outlook version supports this workflow.
Open the email and select File > Save As, if the option is available.
Choose a destination folder and enter a file name.
Select Outlook Message Format (*.msg) or the Unicode MSG option from the available file types.
Click Save to create the MSG file.
Open the saved file in Outlook to verify the email content and attachments.
Note: The available options depend on your Outlook version. Outlook for Mac does not provide the same MSG export workflow as classic Outlook for Windows.
Limitation: This method can be time-consuming when processing hundreds of emails. You may need to repeat the steps for each message, and it does not provide a convenient way to apply bulk conversion filters or consistent naming rules.
Method 2: Import EML Files into Outlook and Save Them Individually
Another option is to import or open EML messages in Outlook and save each message in MSG format. This approach is useful if you want to organize a few emails before exporting them.
Steps to convert EML files to MSG:
Create a separate folder on your computer and copy your EML files into it.
Launch Outlook and create a dedicated folder, such as Converted Emails, in your mailbox.
Open each EML file using a compatible email application or Outlook workflow.
If necessary, move or copy the opened message into the appropriate Outlook folder.
Open each message and use File > Save As to save it as an MSG file, where supported.
Select the output folder and use a descriptive file name.
Repeat the process for the remaining messages.
Check a sample of the output files to confirm that the email body, sender details, and attachments are available.
Limitation: Importing emails into Outlook is not the same as converting files directly. The workflow can vary by application version, and individual saving takes time. For large collections, a dedicated converter is generally more practical.
Method 3: Convert EML Files to MSG Using Automated Tool
When manual methods are time-consuming or you need to process multiple EML files at once, using a dedicated conversion tool can simplify the process. The SysTools EML Converter Tool provides an automated way to convert EML files to MSG format while offering options to select emails, preview messages, and choose a destination for the converted files. This method is suitable for users who want to reduce repetitive manual work and manage large email collections more efficiently.
Stepwise Guide of the Tool
Steps to export EML files to MSG using this effective tool:
Download and launch the software on your computer and open the application.
Browse to the folder containing your EML files and load the data. Use the preview panel to inspect the available emails.
Choose specific messages or select the files you want to convert. This helps you avoid exporting unnecessary emails.
Click the export option and select MSG from the available file formats.
If required, apply the date filter to select emails within a particular period. Use the naming convention settings to organize output files.
Browse to the folder where you want the converted MSG files saved.
Click the Export button and allow the software to process the selected emails.
Open several output MSG files and check their message content, headers, and attachments before archiving or sharing them.
The main benefit of this method is that it simplifies repetitive conversion tasks. Instead of manually saving each email, you can process multiple EML files and apply available selection and naming options through one interface.
Common Reasons to Convert EML Files to MSG
Users may need to convert email files for several reasons:
Outlook compatibility: MSG is a native Outlook message format, making it useful for Outlook-focused email workflows.
Email organization: Individual MSG files can be stored in folders for easier access, categorization, and sharing.
Business requirements: Some document management systems and workflows specifically request MSG files.
Email archiving: Saving messages individually can help maintain organized records for future reference.
Bulk email processing: Converting multiple EML files can simplify the preparation of email archives for Outlook users.
Note: If you already have MSG files and need to convert them into other formats, then you can opt for MSG Converter Software. This utility is designed to export MSG files in bulk without losing the important data.
Conclusion
In this article, we have covered three methods to convert EML files to MSG, including using Microsoft Outlook, importing and saving emails individually, and using the SysTools EML Converter Tool. The manual approaches are suitable for a limited number of emails but can become time-consuming when dealing with large collections.
For bulk conversion, the automated method offers a more convenient workflow with selective export, date filtering, and naming options. Before completing the process, verify the converted messages and attachments, and retain a backup of your original EML files. Choose the method that best matches your email volume, operating system, and data management requirements.
