There are several ways to manage and reduce the size of your PST files:
Archiving: Regularly archive old emails to reduce the size of your active PST file. Deleting Unnecessary Emails: Remove emails that are no longer needed, especially those with large attachments. Using Multiple PST Files: Distribute your data across multiple PST files to avoid hitting size limits. Compacting PST Files: Use the compact feature in Outlook to reduce the size of PST files by removing empty space.