Aspose.Email for Java is a Java component for reading and writing Microsoft Outlook MSG files without using Outlook. It can create and update MSG files, and retrieve properties such as subject, body, recipients, attachments, sender information, MAPI properties. It can be used with Web or desktop applications.

PST and MSG operations were improved. There were fixes for message encoding during conversion, formatting of message headers, extracting appointments from PSTs, disturbed message body characters, optional attendees not being recognized by the Appointment class, extracting appointments from PSTs, and issues with missing organizers

Aspose.Email for Java – Freecode