If you're an Outlook user, you'll have PST files. In general, PST files have a huge size due to the fact that they hold an enormous amount of information. To reduce the PST size, it is possible to make use of the secure and safe method. So, we'll recommend the most informative blog, which offers an entire solution to reduce PST File size with secure methods.
However If you're seeking a fast and secure solution, you could test the Cigati PST Compress Tool which comes with a variety of advanced options. These advanced functions are useful to provide a reliable solution.