Send plain text emails to simulate a sales rep send

Hello! Our team deploys this type of email on occasion, we call them "Sales enablement type emails" when speaking with our non-Marketo using partners. We tend to use Marketo's default "Personal Note" template, which will still insert the unsubscribe text/HTML configured for your instance at the bottom of the email. If you need to double check or adjust that unsubscribe footer, you can find it in the Admin tab under "Email" settings (check out this article for the details). If you have your email footer saved as a snippet, you can also use that to get your socials/legal text into these emails, you may just create a slightly adjusted version of that snippet so that is blends better with the look of a plain-text sort of email. 

Is the request from sales to create this plain text email as an option for them to send via Sales Insight, or would this be something you deploy as part of a marketing campaign run from Marketo? I only have experience with the latter, and one thing I would flag as a watch-out there is that you will want to triple-check what recipients will be getting these. We have a pretty big org, which sometimes means our sales owner name and email address fields can fall out of date due to folks leaving/changing roles. This makes it risky to use tokens for the email address/sender name in those types of emails, so just be mindful if that is the case for your team.

Hope this is helpful! Curious to see how others have approached this type of use case, so thanks for asking a thought-provoking question!