How to Compress PST files ?
Use Outlook PST Compress Tool for compressing or compacting PST files that reduce the size of your Outlook mailbox without needing to install MS Outlook on your local device. You can compress large PST files without losing any data. This software has a Date Range Filter option through which you can sort emails according to date and time. Moreover, it has an interactive and simple user interface.
Read More: https://www.aryson.in/software/outlook/pst-compress/
Pragya Srivastava
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lucascarter
commented
I have been using Outlook for a long time and the size of my PST file has gone up to more than 10GB. This has slowed down Outlook's speed. Even after deleting, the size was not reducing. Then I used DataVare Outlook PST Compact Expert tool and the result was quite good. This tool reduces the size of the PST file without any data loss, and also gives the option to save attachments separately. The interface of the software is quite simple, and you can compact multiple files at once. Those who find Outlook slow or the PST size has increased a lot, must try it once.
Read More:- https://www.datavare.com/software/outlook-pst-compact-expert.html
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Sanchit Tandon commented
To manually compress a PST file, open Outlook, go to File > Account Settings, select the PST file, and click Compact Now. However, this method is slow, often ineffective for large files, and may not significantly reduce size. For a more efficient solution, consider using DRS Softech PST Compress Tool, which quickly shrinks PST files without data loss and handles large files seamlessly.
Read More: https://www.drssoftech.com/pst-compress/