If you are facing a problem in Delete EML Duplicates within a folder, then I would like to suggest the Softaken EML Duplicate Remover Software, which can eliminate duplicate problems effectively. This is available on the internet with good experience of users. This application supports different EML-supporting email clients just as Apple Mail, Windows Live Mail, Outlook Express, Thunderbird, etc. Users can remove multiple EML files or within the folder to duplicates as per selection without any barrier of file sizes. Users are free to save the duplicate free EML file as per desired location on the desktop. This tool offers a demo version to test its features before purchasing the application.
More Information: https://www.softakensoftware.com/eml-file-duplicate-remover.html