@encodedothost Not sure what you mean. Can you elaborate what you are trying out. Thanks.
Suman,
This is a good guide to explain what I mean: https://gist.github.com/tylermakin/d820f65eb3c9dd98d58721c7fb1939a8
Basically, the email would send a plain text version (stripped out html) and full html version in the same email, and the email client would then decided which is wants to use.
The reason that I bring it up, it that whilst trying out the plugin I sent a test email to a plain text system and it just showed the raw HTML code and made it hard to read.
@encodedothost I had a look at the possible solution for this but it seems to be a mess at the moment. I will see if this is possible on future release. Thanks.