SMTP Step

Top-level properties

name	type	required	constraints
`connection`	string	yes	Name of the connection instance
`action`	string	yes	enum: `SEND_EMAIL`	Operation to perform
`sendFrom`	string	yes	Sender email address
`sendTo`	string	yes	Recipient email address
`subject`	string	yes	Email subject line
`message`	string	yes	Email body content
`attachments`	array[File]	no	Optional attachments

Attachment File — same as other integrations.

Example (JSON)

{
  "connection": "smtp-prod",
  "action": "SEND_EMAIL",
  "sendFrom": "[email protected]",
  "sendTo": "[email protected]",
  "subject": "Invoice",
  "message": "Please find your invoice attached.",
  "attachments": [
    {
      "source": {
        "id": "file-777",
        "downloadUrl": "https://files.example.com/download/file-777"
      },
      "name": "invoice.pdf"
    }
  ]
}