Here, I suggest that you find the best solution to transfer Outlook Emails to Yahoo Mail with the eSoftTools OST Recovery software. It can migrate easily and simply on Windows OS (XP, 7,8,10 and onward). It can instantly import multiple amounts of data at a time from one to another window. It also repairs all internal email data like emails, documents, journals, appointments, attachments, deleted files, chats, notes, tasks, etc. You can download the trial demo version of this tool and convert the OST file into Yahoo Mail, the first 25 in each folder.
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