Step 1: Download, install, and run SysData MBOX to PST converter.
Step 2: Check preview of MBOX file items.
Step 3: Select File Destination path and choose PST as Export option.
Step 4: Select Message Filtering option to export items between a specific date range.
Step 5: Click on the "Convert Now" button to convert MBOX to PST file.
Step 6: For Office 365, choose Office 365 option from menu and enter credentials.
Click on the "Connect to Server & Import" button to import MBOX to Office 365 account.
Step 7: For Exchange Server, select Exchange server option and enter credentials.
Click on the "Connect to Server & Import" button to import MBOX to Live Exchange server account.
Step 8: For Gmail account, choose Gmail option from menu and enter credentials and click on the "Connect to Server" button.
Step 9: Choose Message Filtering option if required to import the specific mails between the date. Click on Start Processing button to import MBOX files into the Gmail account.