How to turn off the "Text Version" email of a Campaign

How to turn off the "Text Version" email of a Campaign

Wondering if there is a feature in Zoho Campaigns to turn off the "Text version" of an email campaign?

So only 1 email goes out, as opposed to 2 emails going out every time we send a Campaign.

We have the Header and Footer attached to the email campaign and if you cannot view the images, you can view it in HTML, so we really don't need the text version, do we???

We would really only rather have 1 email going out, it might seem like spam to our customers getting 2 emails every time we send them a campaign ?!?

Anyones thoughts would be greatly appreciated,