Webform is not sending body as HTML
I had similar issue with emails sent from webform module (Drupal 9.0.7 &amp; webform 6.0.0-alpha20), solved using following steps.

Install and enable Mail mail module https://www.drupal.org/project/mimemail
Ensure email format is &quot;Full html&quot; at /admin/config/system/mimemail
Go to /admin/config/system/mailsystem and choose &quot;Mime Mail mailer&quot; for
&quot;Formatter&quot; and &quot;Sender&quot; fields under default mail settings.
In your webform, go to settings-&gt; Email/handlers -&gt; Advanced tab. Make sure &quot;Send email as HTML&quot; is checked.