How can I compress PST files?

I recommend you utilize this Outlook PST compress application, which can safely decrease the size of your Outlook mailbox without the requirement for Microsoft Outlook installation. It can compress Outlook/Exchange OST/PST files, handle single or multiple PST files, and display full folder information. The features include compressing attachments into a new PST file, eliminating duplicate emails, and managing attachments. This Aryson PST compress utility has clever filtering, file splitting by size, and a date range option. It is also compatible with all Microsoft Outlook versions for the Windows operating system.

  • If you want to compress large PST files, try the Softaken PST Compact Tool. The software will help compress and reduce the size of your Outlook PST files and allow you to keep your attachments anywhere on any portable hard drive. There is a demo version with all the features that can be used to test the software. It is fully supported software that is compatible with all versions of Windows.

  • MailsDaddy PST Split Tool is the most reliable utility, which easily splits the over sized Outlook PST file into multiple small PSTs.
    It is the single wizard application that comes with simple GUI interface.
    The PST Splitter software gives some unique options for divide the PST files such as Split by date, Split by folder, Split by email id, and Split by size.
    The software is compatible with all editions of Windows OS.

  • You can use a professional PST Compress and Compact tool like the one from Shoviv Software for faster and more effective results. This tool can:

    • Handle multiple PST files at once.
    • It can remove duplicate items.
    • Compress files by removing or separating attachments.
    • Work with old (ANSI) and new (Unicode) PST files.
    • You can add password protection to the compressed files.
    • This tool can be used easily without technical skills.

    Before buying the full version, you can try a demo version of the PST Compress tool to see if it works. The demo lets you save the first 25 email items from each folder in the selected PST file(s).