text/plain in e-mail template
Good day. If you send e-mail through templates, then the plain/text part is missing in the e-mail. Which reduces the score. I propose to add the ability to specify plain/text part in the e-mail send through templates.

Thanks for the feedback here! You can currently do this by passing the parameter t:text “yes” and we will render a text version of the template. Additionally, you can specify your own text version by passing the “text” parameter. Feel free to check out our docs here: https://documentation.mailgun.com/en/latest/api-sending.html#sending
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Nico commented
Each template should definitely have a dedicated plain-text representation which can be added using the dashboard. Passing the text parameter means there'll be two sources of truth. And "t:text" is way to inflexible.