Save PST using aspose

Aspose.Email Product Family
1

Hi
I would like to ask why the size of the PST file created using Aspose is significantly larger than the original OST file. Kindly provide a proper explanation.

Thanks
Regards

2

@Anjali12

Cause

The size of the PST file created using Aspose may be larger than the original OST file due to several factors. One common reason is that the PST format may include additional metadata or structure that is not present in the OST file. Additionally, the way data is stored and compressed in PST files can differ from OST files, leading to size discrepancies.

Solution

To address the size issue, consider the following steps:

  1. Check for Duplicates: Ensure that there are no duplicate items being added to the PST file during the conversion process.
  2. Optimize Data Storage: Use the appropriate methods to minimize the size of the PST file. For example, when adding messages, consider using bulk operations to reduce overhead.
  3. Compression: If possible, apply compression techniques when saving the PST file to reduce its size.

Code

Here’s a simple example of how to create a PST file and add messages efficiently:

// Create a new PST file
PersonalStorage personalStorage = PersonalStorage.create("output.pst", FileFormatVersion.Unicode);

// Add a new folder
FolderInfo inboxFolder = personalStorage.getRootFolder().addSubFolder("Inbox");

// Add messages to the folder
for (String messageFile : messageFiles) {
    inboxFolder.addMessage(MapiMessage.fromFile(messageFile));
}

Next Steps

  1. Review your conversion logic to ensure that it is optimized for size.
  2. Test the PST file size after implementing the above suggestions.
  3. If the issue persists, reach out for further assistance or explore additional options for PST file management.

Please implement these recommendations and let me know if you need any further help!