What are two possible outcomes when "Send as Multipart MIME" is selected during the send process?

The email will avoid detection by various SPAM filters.
An auto -generated text version will be sent with your HTML email.

Explanation- While creating a send definition selecting MIME option will automatically generate a text version of the email which is sent. Though, there is no documentation for this from Marketing cloud, having a MIME alternative of email increases deliverability and is not blocked by SPAM filters.*##**##*