Read Outlook MSG File using Java

ReadOutlookMSG_Java.md

Learn how to read an Outlook MSG file using Java: https://blog.conholdate.com/2022/03/16/read-outlook-msg-file-using-java/

The following topics shall be covered in this article:

1. Java API to Read Outlook MSG File
2. Parse and Read an Outlook MSG File
3. Get Attachments from MSG File
4. Read Embedded Message from Attachment

ReadOutlookMSG_Java_GetAttachments.java

// This code example demonstrates how to save attachments from MSG file.
// Load an MSG file from disk
MapiMessage outlookMessageFile = MapiMessage.load("D:\\Files\\Email\\WithEmbeddedMsg.msg");

// Loop through the attachments collection associated with the MapiMessage object
for (int i = 0; i < outlookMessageFile.getAttachments().size(); i++) {
  
  // Set a reference to the MapiAttachment object
  MapiAttachment outlookMessageAttachment = (MapiAttachment) outlookMessageFile.getAttachments().get_Item(i);
  
  // Display attachment type
  System.out.println("Att Type : " + outlookMessageAttachment.getMimeTag());
  
  // Display attached file name
  System.out.println("File Name : " + outlookMessageAttachment.getLongFileName());
  
  // Save attachment to the disk
  outlookMessageAttachment.save("D:\\Files\\Email\\" + outlookMessageAttachment.getDisplayName());
}

ReadOutlookMSG_Java_Read.java

// This code example demonstrates how to read MSG file.
// Load an MSG file from disk
MapiMessage outlookMessageFile = MapiMessage.load("D:\\Files\\Email\\message.msg");

// Display sender's name
System.out.println("Sender Name : " + outlookMessageFile.getSenderName());

// Display Subject
System.out.println("Subject : " + outlookMessageFile.getSubject());

// Display Body
System.out.println("Body : " + outlookMessageFile.getBody());

// Display Recipient's info
System.out.println("Recipients : \n");

// Loop through the recipients collection associated with the MapiMessage object
for (int i = 0; i < outlookMessageFile.getRecipients().size(); i++) {
  
  // Set a reference to the MapiRecipient object
  MapiRecipient rcp = (MapiRecipient) outlookMessageFile.getRecipients().get_Item(i);
  
  // Display recipient email address
  System.out.println("Email : " + rcp.getEmailAddress());
  
  // Display recipient name
  System.out.println("Name : " + rcp.getDisplayName());
  
  // Display recipient type
  System.out.println("Recipient Type : " + rcp.getRecipientType());
}

ReadOutlookMSG_Java_ReadEmbeddedMessage.java

// This code example demonstrates how to read an embedded message attached in MSG.
// Load an MSG file
MapiMessage mapi = MapiMessage.load(dataDir + "EmbededMessageAsAttachment.msg");

// Show total attachments
System.out.println("Total attachments : " + mapi.getAttachments().size());

// Read attachment as MapiMessage
MapiMessage emb = mapi.getAttachments().get_Item(0).getObjectData().toMapiMessage();

// Display sender's name
System.out.println("Sender Name : " + emb.getSenderName());

// Display Subject
System.out.println("Subject : " + emb.getSubject());

// Display Body
System.out.println("Body : " + emb.getBody());

// Display Recipient's info
System.out.println("Recipients :");

// Loop through the recipients collection associated with the MapiMessage object
for (int i = 0; i < emb.getRecipients().size(); i++) {
  
  // Set a reference to the MapiRecipient object
  MapiRecipient rcp = (MapiRecipient) emb.getRecipients().get_Item(i);
  
  // Display recipient email address
  System.out.println("\t Email : " + rcp.getEmailAddress());
  
  // Display recipient name
  System.out.println("\t Name : " + rcp.getDisplayName());
  
  // Display recipient type
  System.out.println("\t Recipient Type : " + rcp.getRecipientType());
}