Microsoft Outlook Email Client: Microsoft Outlook is one of the most widely used email management applications, which is preferred by millions of users across continents.

Outlook PST Files: Outlook mailbox items (mail messages, contacts, tasks, calendar items, notes, appointments journals and others) are stored in files with PST file format. These PST files are the repositories of MS Outlook email items. PST files have two file formats – ANSI PST (a format of older Outlook versions 97, 2000 & 2002) and Unicode PST (a format of newer Outlook versions 2003, 2007).

File Size Limit of ANSI PST: In ANSI PST, there is a physical limit on PST file size, which is up to 2 gigabytes. If this file size limitation of 2 GB is exceeded, then it can cause Outlook PST corruption. Beyond 2 GB, you will not be able to store anything in Outlook and it can also result in PST corruption. Some other considerations (like the speed of Outlook) also need you to control PST file size.

For Preventing PST Corruption, Reduce PST File Size: Before PST corruption happens due to exceeded file size limit, it would be beneficial for you to reduce Outlook PST file size. You can Compress Outlook PST file size before it exceeds beyond 2 GB. In Outlook PST file, around 50% to 60% space is taken by the emails attachments that are embedded inside the PST file. So, a great way to compress Outlook file is by removing these bulky attachments.

Outlook File Compaction: Follow the two simple steps to compress Outlook mailbox size:

Step 1 – Delete Whatever is Possible You Delete: The first step that you can perform for Outlook file compression is to delete whatever is possible to delete from your Outlook PST mailbox. You have to remember that even if you delete any item from your Outlook mailbox, it will only be moved to the Deleted Items folder which will again not free the space until you empty the Deleted Items folder. This will help you reduce the file size but only little bit, because even after you empty the Deleted Items folder, those deleted items will still exist in the PST file. The folder size will surely reduce but the PST file size will not reduce to great extent. In order to reduce PST file size, you need to perform the second and more important step and that is of performing the Outlook PST compress process.

Step 2 – Outlook PST Compress (Remove Heavy Attachments): A great option to compress Outlook file is by removing heavy email attachments embedded inside the PST file, using an efficient third-party tool. SysTools PST Compress software is one such Outlook PST compact tool that can help you compress Outlook PST files quickly by removing the bulky attachments inside your mail messages. Using this PST compact tool, you can compress Outlook file in perhaps the most efficient way possible. With this great PST compact utility tool, you can choose from the following three options during the Outlook PST compress process;

Remove the attachments

Extract and save the attachments

Extract, save and compress the attachments

Using this simple and intuitive PST compress utility tool, you can perform Outlook file compaction easily, quickly, efficiently, and cost-effectively.