How to Convert OST to EML? A Step-by-Step Guide

OST short for Offline Storage Table files stores copies of Outlook Exchange mailboxes offline. These files are of great use, but some scenarios demand converting them into Email Messages, i.e., EML format. Also, EML files are widely compatible with several email clients and can be easily accessed and shared. So, this blog discusses the conversion needs and reliable ways to convert OST to EML. In the end, find an OST to PST Conversion Tool for a more convenient approach.

Reasons to Convert The OST File to EML Format

Numerous reasons motivate users to export OST files to EML. Some of them are mentioned here:

• OST files are only accessible with Outlook. Whereas, EML can be opened with multiple email clients.
• System crashes or virus attacks can hamper OST files. Thus, change OST to EML for backups.
• EML files organize data efficiently as each email is stored separately in it. 
• Moreover, emails can be archived and shared smoothly in a globally preferable file format.

After analyzing the significant reasons for OST to EML conversion, let’s explore the methods.

Finest Solutions to Convert OST to EML Free

To convert your OST file into EML format, choose free manual methods or a professional tool. This depends on your preferences and technical skills. Additionally, note that the manual method may comprise some limitations. On the other hand, a professional tool is risk-free and easy to use.

Export OST File to EML Manually

The manual method is separated into two scenarios. First, is when OST files are downloaded from the Exchange Server, i.e. Outlook is synced. Second, when the Exchange Server is disconnected and the OST file is orphan. Go through them in detail below.

Scenario 1: Outlook OST Connects with the Exchange Server

Before directly jumping to the steps, ensure these prerequisites are completed. These are:

• Running MS Outlook profile synced with the Exchange Server.
• Installed Mozilla Thunderbird or any other EML-compatible application.
• An IMAP-enabled Gmail configured with the MS Outlook account.

Further, continue with these steps to change OST files to EML files:

Part 1: Import OST to Outlook-Configured Gmail

Foremost, copy the entire OST file data. Where? Into the Gmail account that you have configured with your Outlook profile through IMAP. How? You can easily move the OST files to Gmail in Outlook via drag and drop. 

Part 2: Connect Thunderbird and Gmail

1. Run an EML-compatible email application. Here, we choose Mozilla Thunderbird.
2. Start Thunderbird, go to the Menu tab, and tap on Account Settings.
3. Further, click on Account Actions and then, choose Add Mail Account.
4. Provide the credentials of the same Gmail that you configured with Outlook.
5. After that, click on Configure manually and provide server details.
6. Press Re-test >> Done and at last, Finish to connect the account.

Note: We chose Thunderbird because it can directly save OST files as EML or Convert OST to MBOX. 

Part 3: Convert OST to EML Format

1. Now, you can see all your OST emails in the Thunderbird profile. 
2. Either drag and drop the emails on your desktop to save them as EML.
3. Otherwise, open the mailbox folder containing OST emails and select all emails.
4. Afterward, right-click on the selected emails and press Save As.
5. Then, choose the EML format from the list of saving options.
6. Subsequently, provide a destination to save the EML files.
7. In the end, click Save to transfer OST to EML files.

Scenario 2: Outlook OST is Not Connected to the Exchange Server

If your Outlook profile is disconnected from the Exchange Server, it means the OST file is orphaned. In such a case, you cannot perform the OST conversion manually. Therefore, you have to go for a professional tool anyhow. 

Manual Methods Drawbacks

Although a free manual method prevails, users must know the cons of using this method.

• Time-consuming to transfer OST to EML files with many steps and prerequisites.
• The process is not suitable for large volumes of data with attachments.
• Chances of file corruption and losing data integrity and confidentiality.
• Complex and requires a user to have technical knowledge or assistance.
• Stable internet and connection to the MS Exchange server is mandatory.

These limitations give a clear picture of why users need an expert tool for OST file conversion. 

Convert OST to EML via Dedicated Software

Use the prominent OST to PST Conversion Tool to convert OST files to EML in batches. It supports OST files of any size and easily converts them without data alterations, manipulations, or losses. Also, export OST files to Gmail, G Suite, Office 365, iCloud, and other email clients. Besides that, this excellent utility provides these features:

• Capable to convert OST files into EML in bulk on any Windows OS.
• Has a simple GUI and doesn’t require any technical expertise to operate.
• Convert OST to PDF and other file formats like CSV, XLS, JPG, DOC, etc. 
• Provides various intricate features for accurate and secure conversion.

Steps to Export OST File to EML

1. Launch the PST to PST Conversion Tool as an administrator.
2. Add single or multiple OST files to the software and click Next.
3. Further, preview the emails and attachments and choose folders. Tap Next.
4. Select the EML format from the saving options of Save/backup/Migrate As.
5. Afterward, apply the needed filters on the resultant EML.
6. Specify Path to Save and at last, click the Convert button to export OST.

Isn’t this expert method a lot easier?

Conclusion

To conclude, the blog guided several reasons for which users prefer EML over OST. We explored two major methods to convert OST to EML conveniently. The manual method has limitations and risks, despite being free. So, if you want to keep your data safe and get 100% accurate results, use a professional tool.

Frequently Asked Questions