Thank you for writing to Aspose support team.
Aspose.Email provides features to work with MapiCalendar as given here
. We can also add calendar item to PST as given in the article Adding MapiCalendar to PST
. When this PST is opened in Outlook, all the calendar items are available which are earlier processed using Aspose.Email.
Please have a look on these articles, and if your requirement is not fulfilled, please provide detailed information about the required functionalities. We will try to provide assistance accordingly as soon as more details are provided.