I have the same ‘Email content’ (below) for both ‘Email’ and ‘Confirmation Email’, with both set to ‘HTML email’. But when received, only the ‘Confirmation email’ shows the styling, the ‘Email’ does not:
<style>
p {
border-bottom: 1px solid #ccc;
padding-bottom: 1em;
}
</style>
<p>Name: {{30b59b}}</p>
<p>Email: {{700f53}}</p>
<p>Message: {{635824}}</p>