Video Tutorial: Uploading your emails to Postmark
In the Emailify export panel, select the Postmark option from the dropdown list, then paste in a valid Postmark API key, which can be generated from your Postmark account Servers page.
When you're ready, click the Upload To Postmark button to start exporting the emails you've selected from Figma to HTML, and have them automatically be uploaded to your Postmark Server's templates page.