Step 1:- Start the application to launch its main interface as shown. In the 'Select Outlook Profile & MBOX Client' dialog, choose 'Select Outlook Profile' to select any profile configured in MS Outlook.

PST to MBOX Converter

Step 2:- Or you can also choose 'Select Outlook PST File' to select a PST file for conversion to MBOX. click 'Select PST File' next to the 'Select PST File' textbox to select an Outlook mailbox. Click 'Find PST File' below 'Select PST File' button, if you do not know where your PST file is located.

PST to MBOX Converter

Step 3:- A 'Find Outlook PST' dialog is displayed. Type the drive to be scanned and the file type to be searched in the 'Look in' and 'File Type' box respectively. Select 'Find in Subfolders' to include subfolders in your search. You can also click 'Find in Folder' to search in a specific folder. Click 'Start' to start the search process.

PST to MBOX Converter

Step 4:- Select a PST in the displayed results, and click 'OK'.

PST to MBOX Converter

Step 5:- Below 'Select Mailbox Client (MBOX):-', select the desired MBOX client to which you need to export mails. Click 'OK' to start the conversion.

PST to MBOX Converter

Step 6:- If your PST file is password-protected, the 'Enter Outlook PST Password' dialog box is displayed. Specify the password in the 'Enter Password' textbox and click 'OK'.

PST to MBOX Converter

Step 7:- The software starts scanning the selected file and displays all the mail items in the left pane once the scan is finished.

PST to MBOX Converter

Step 8:- You can preview the desired mails after selecting their corresponding folders from the tree-structured list.

PST to MBOX Converter

Step 9:- Click 'Convert to MBOX' button on the toolbar to convert and save your email messages. In the dialog that appears, provide the desired destination path to save the MBOX file and click 'OK'.

PST to MBOX Converter