Sending custom HTML emails

You can send custom HTML emails via the Sidemail API. To send HTML emails you'll need to specify the html parameter.

  • You can use all UTF-8 characters inside inside the html parameter.
  • An email open tracking pixel is automatically inserted at the end of the email <body>. You can disable open tracking by setting parameter isOpenTracked to false.

Example

You can also send custom email with both the HTML and plain-text version.

Here's an example: