WPCF7_AUTOP set to false forces plain text emails

Am I correct to assume that due to this check

function wpcf7_mail_html_body_autop( $body ) {
	if ( wpcf7_autop_or_not() ) {
		$body = wpcf7_autop( $body );
	}

	return $body;
}

the HTML emails are sent in plain text if adding this config?

define('WPCF7_AUTOP', false);

Previously I used this config in order to only prevent autop when forms were rendered.