This add-on requests the minimum permissions to read your draft email, load information from your Google Sheet, and send emails. All of your data is handled directly within the add-on, and not by a third-party computer.
MergeThisEmail is free and open-source: you are free to use it, study its source code, and modify your own copy. The source code is available at https://github.com/umangv/mergethisemail
This add-on is designed to be easy-to-use and transparent.
MergeThisEmail can also handle images and attachments in your email. These will not appear in the preview, however.







