Sending html content in AWS SNS(Simple Notification Service) emails notifications

Amazon SNS is designed to distribute notifications. These can be received in a variety of formats, such as email, SMS, messages pushed to HTTP endpoints, mobile phone notifications and even triggering of AWS Lambda functions.

It is not designed as a fully-featured email system. It will only send text messages and appends an 'unsubscribe' footer at the bottom of the messages.

If you wish to send formatted emails, consider using Amazon Simple Email Service (SES), which improves email deliverability. Any content passed into Amazon SES is sent out to recipients, including HTML.

Amazon SNS is primarily about notification, rather than pretty content.