Apps similar to Remove Duplicate Messages - Thunderbird include ReliefJet Essentials for Outlook. Other options are Remove Attachments from EML Files and Remove Attachments from MSG Files. In total there are three Mail Converters like Remove Duplicate Messages - Thunderbird for Windows.
A large set of useful and easy-to-use tools for every Microsoft Outlook user: Import, export and convert using EML,MSG,TXT and PST formats; remove duplicate items, process attachments and extract addresses; get reports and statistics and even more...
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This free utility removes attachments from email message files in EML format. It allows you to remove unwanted attachments from EML files, such as viruses, executables, photos, videos, audio, or duplicate files.
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This free utility removes attachments from Outlook MSG files stored in the selected folder, including subfolders. The program allows you to specify the types of attachments to be removed and skipped and even parts of their names by mask.
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