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+--- Thread: Best Tool to Compress Oversized Outlook PST Files (/thread-21151.html)
Best Tool to Compress Oversized Outlook PST Files - Brantanson01 - 10-24-2025
My Outlook PST file has become very large, and it is starting to slow down my Outlook performance. I have already archived old emails, but the file size is still too big. I am looking for the best and most reliable tool to compress oversized PST files without losing any data or folder structure. Has anyone used a good PST compression tool that actually works efficiently with Outlook 2019 or 2021? Please share your recommendations and, if possible, a step-by-step solution or method to reduce the PST size safely.
RE: Best Tool to Compress Oversized Outlook PST Files - rebeccareed - 10-24-2025
If your Outlook is running slowly or your PST file has become too large, Softaken Compress PST Software is an excellent tool. This tool safely compresses your PST file and improves Outlook's performance.
Large PST files compress
Data safely and without loss
Supports all Outlook versions
User-friendly interface
Try it to quickly and safely compress a PST file.