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B. RecoveryTools MBOX Migrator (.Mbox format emails to standard Gmail )
- Thunderbird
- ImportExportTools NG 11.1 addon
- install Thunderbird
- Install the ImportExportTools NG 11.1 addon ( Link: https://addons.thunderbird.net/En-us/thunderbird/addon/importexporttools-ng/ )
- Sign in to your destination email address
- Now right click >local folders (under inbox tool panel) > select ImportExportTools NG > select import mbox file
- Select your .mbox file
- Now you can see all your emails imported from the .mbox file
- Just drag and drop the imported folder into the inbox
- Repeat the drag and drop for sent emails, drafts, etc
- Wait for the copying progress to be done-- see the activity manager on the right bottom for the progress