HTML Email Plugin Preview not sending emails. Prevents other emails from sending

Howdy!

I am having trouble with the HTML email plugin I'm afraid. I followed the directions from the plugin page. When I pasted the final HTML into the plugin, I receive no email preview. I've tried twice.

Also, when the plugin is activated the auto response from A+ doesn't work at all.

Is there a way I could post my code to check for mistakes? I definitely made sure to include MESSAGE :slight_smile: I don't have much HTML experience so I'm a bit overwhelmed here.

Cheers!