A plain text email is pretty self-explanatory. It's akin to a regular email that you might compose using a client like Outlook or Gmail. However, to add some flair and structure to your templates, you might find that plain text doesn't quite cut it.
To send more visually appealing emails, you'll need HTML. However, unlike with modern websites, the HTML structure expected by email clients has remained stagnant for decades. This makes creating an email template with HTML a challenging and time-consuming task. Thankfully, there's MJML.
While a drag-and-drop template builder is in the pipeline, we highly recommend experimenting with MJML for maximum control over your template's aesthetics.
Note: While it's not mandatory to include an unsubscribe link in your email templates, it's strongly advised. If recipients don't want to be contacted by you and they don't have a way to unsubscribe, they may mark your email as spam. This can negatively impact your Amazon SES reputation.