Mail merge

Stellar Merge Mailbox for Outlook Review

Managing various PST (Personal Storage Folder) files can be problematic when you have many user accounts in Outlook. Moreover, PST files may include duplicate mail items, creating a mess.

Merging multiple PST data into a single PST can help you fix Outlook performance issues and other issues related to maintaining lots of PST files. Manually integrating multiple PST files into a single file is time-consuming. therefore, it is recommended to use the tool to do the job.

Additionally, the manual approach can lead to data inconsistency errors, which makes a specialized PST file merger application a better option. Although the Internet is full of many options, choosing the most suitable one is undoubtedly daunting. But don’t worry because we have made a task for you.

In this article, we will review the features and functions of Stellar Merge Mailbox for Outlook and its ease of use, speed, performance, and compatibility. Scroll through the post and make an informed choice.

Benefits of Choosing Stellar Merge Mailbox for Outlook Software

Stellar Merging Mailbox for Outlook is a powerful PST file merger application that combines or merge multiple Outlook PST data into a single PST file. It also allows you to exclude Trash folder or spam items from PST files.

Now let us see the essential settings of Stellar Outlook Merge Mailbox Tool:

1. Functionality and Features

The tool comes with various features that give it an edge over its competitors. We have explained some key features of this software below.

  • Merge large and password protected files

Merge Outlook PST Files is a program that allows you to merge or combine PST files of any size. It also facilitates the merging of password protected PST files by allowing the user to enter the password of the files.

  • Delete duplicate emails

While merging PST files, the software allows you to remove duplicate entries. It helps to delete same items based on sender email id, sender name, subject, time and date the email was sent and other factors.

  • Delete spam and trash folder

The software also allows you to exclude trash and spam folders during the merge procedure. This is a useful feature to remove unnecessary data from the merged PST.

  • Merge password protected PST files

The tool can easily merge password protected PST files making it an ideal option for anyone. All you need is to enter the password of the Outlook files which need to be merged, and you are done.

2. Performance

The software simplifies merging or associating PST files in three simple steps. However, depending on the size of the PST files, merging/joining them may take some time.

Step-by-Step Guide to Use Merge PST Files Tool

Here is mentioned a step by step procedure to properly use PST file merge tool.

Step 1: Merge PST File

  • In Stellar Merge Mailbox for Outlook software, add the PST files you want to merge or join.
  • You can either drag and drop the PST files or use the Add PST icon in the Home menu to add them.
  • To continue merging, click Next.

Step 2: Preview merged files

  • A preview window appears in Stellar Merge Mailbox for Outlook software.
  • Under the root node, the left pane contains all folders containing all objects of the merged/joined PST file.
  • In the middle pane, click any folder to see its contents.

Step 3: Save the final PST file

  • Before saving the data from the merged PST file, use the preview option to double check it.
  • After validating the data, save the merged PST file to a new or existing PST, Office 365, Outlook or Exchange Server file.
  • After selecting the export option to save the final PST, navigate to the directory where you want to save the file and click Merge.
  • In the case of a registration in Office 365, the login credentials must be specified.
  • To save the merged PST file to an Exchange server, specify the login credentials, mailbox e-mail ID, and server name.
  • When the merge/join operation is successfully completed, the message “Process completed” is displayed.

3. Compatibility

Merge PST file tool is unmatched when it comes to compatibility. It works seamlessly with almost all operating systems.

  • The program supports Outlook 2019, 2016, 2013, 2010 and earlier versions.
  • Additionally, Windows 7, 8, 8.1 and 10, Windows Vista, Windows Server 8 and Windows Server 12 are also supported.

4. Pricing

Although the software is free to download, you need to opt for the premium version to access additional features. There are two options to choose from – Standard and Toolkit.

You may use this version of the software on one system only.

It can be easily used on three systems. With Merge Mailbox, you can repair corrupt PST/OST files, split large PST files, delete duplicate emails, etc. through the toolbox.


So it’s all about Merge PST File Tool by Stellar. We hope our extensive research will help you make the right choice. This powerful tool comes with great compatibility and affordable pricing options. Add this tool to your application drawer now and merge all required files into a single PST in just a few clicks.