A few years ago, I discovered that you can insert a table into the body of an email when using Thunderbird. Since then, I switched to a fool. So, out of curiosity, I created a html table using latex2html on a simple latex table. Then I opened the Mutt editor to create an email, copied and pasted the HTML code into the Mutt editor, and closed it to go to the Mutt creation menu. Before sending the email, I used Ctrl-t to edit the content type and change it from "text / plain" to "text / html". After sending the email and opening it in gmail in the browser, the table looked exactly as I would like.
Thus, in the end, you can insert the HTML table into the Mutt editor (in my case vim) and just change the type of content before sending.
source share