Please suggest, to the authors of Thunderbird, the addition of a new feature that I think would be widely embraced: The option to make some, or all, of the recipients receiving blind copies visible to each other, even though still invisible to the principal recipients marked “To:”. This new feature might be called “BccV:” with the capital “V” standing for “Visible”, and capitalized to call attention to it, so that it is not confused with the current, and continuing feature, “Bcc:”. Here are the details: (1) Recipients marked “BccV:” would be visible to all other recipients marked “BccV:” and only to them. (2) Recipients marked “Bcc:” would continue to be invisible to all other recipients (as now), and that would include all recipients marked “To:”, and all recipients also marked “Bcc:”, AND all recipients marked “BccV:”.