If you’ve accumulated years of emails in one PST and it’s becoming unwieldy, a smart solution is to
split PST file into smaller, better organized archives using the MSOutlookHelp PST Splitter tool. It supports splitting by sender’s email ID or folder, so you could isolate work mails from personal ones or separate projects into different PSTs. The program ensures that attachments, calendar entries, contacts, and other mailbox items remain intact and correctly linked. Plus, it doesn’t require Microsoft Outlook to be installed — you can split PST files directly, which makes this especially useful for data migration or cleanup.