Importing emails from MBOX file in Outlook is quite a complicated tasks. Microsoft Outlook doesn't import .mbox file in this email client. Outlook import data in PST file format. In oder to import MBOX file in Outlook, you have to convert MBOX to PST file format. For that there are various good solutions like Advik [url=https://www.S E N S O R/mbox/pst.html]MBOX to PST Converter[/url] tool. This program is very handy and can be used by all types of users.
The software maintain folder and sub folder heirarchy to avoid data loss.

Steps to import MBOX to Outlook 2016 are;
1. Run Advik MBOX to PST Converter and add .mbox file.
2. Select PST as saving option.
3. Click Convert button.
4. Open Outlook and import converted PST from Import/Export Wizard.

Note: Software works even if [url=https://www.S E N S O R/blog/solve-import-export-option-greyed-out-outlook-2016-2013-error/]Outlook import export option is greyed out[/url]