blastula

Blastula is an R package for creating and sending HTML emails directly from R. It provides a composable interface with three content areas (body, header, footer) where you can insert Markdown text, HTML fragments, and R objects from your workspace.

The package generates responsive HTML/CSS that renders correctly across different email clients and devices. It supports SMTP sending with credential management and integrates with Posit Connect for automated email workflows. You can embed images, use dynamic content with glue, and preview emails in RStudio before sending.