This brief guide describes the process to merge PST files in C#. You will understand how to combine PST files in C# by relying on just a limited set of code statements. This task can be carried out in all .NET supported environments such as Windows, macOS, and Linux.

Steps to Combine Outlook PST Files in C#

1. Set up the development environment to include Aspose.Email for .NET from NuGet package manager
2. Load the target PST file using the PersonalStorage class
3. Create a list of source PST files that you need to merge
4. Merge the PST files using the MergeWith method

The steps listed above outline the straightforward procedure to merge PST in C#. Initially, the destination PST file is loaded, and then one or more PST files are added through a list. At the end, the PST files are merged and saved to complete the process.

Code to Merge PST in C#

This example illustrates that creating an application to join PST files in C# can be achieved by using a straightforward API interface with only a small number of method calls. The workflow is quite easy, where you may either create a new PST file or open an existing one to merge it with additional files. In the final step, the MergeWith method is used to combine the PST with multiple PST files available on disk or via a stream.

In this article, we have learned how to combine Outlook PST files in C#. However, if you want to split PST files, you can refer to the guide on splitting PST files in C#.