If you dont know how to convert the MBOX file to OLM? Then I recommend using eSoftTools MBOX Converter Software and checking all the beneficial features in one tool. The software gives the bulk conversion option at one time. Users can easily select all the files and just click on the convert option. Users can watch the live preview for each and every file and it fully maintains the structure of emails and save all the file in OLM format. 

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