To divide PST files, use Kernel for PST Split tool. It’s programmed to split PST file based upon different criteria. The tool provides option to split large PST files (more than 2GB) and password-protected PST files. You just need to mention the password. The tool preserves Meta data (from, to, c, bcc, time and date) while splitting a PST file. It supports all latest versions of MS Outlook. www.split-pst.com/divide-pst-files.html.