The third-party KDETools solution provides an efficient way to convert MBOX to PST without any technical problems. The user can export attachments and emails in various file formats such as EML, EMLX, MSG, HTML, PDF, etc. The user can preview the content for free before the conversion process. There are no file size restrictions as the software can import any file size without errors.

Visit here:  http://www.mboxmails.com/

Kindly suggest me the reliable solution to convert OLM file to PST file. So that I can access my Mac outlook mailbox in Windows version of Outlook.