Send Finalized Transactional Mail

Sends a transactional email template, containing your custom HTML content, to a list of recipients.


  • BrandID – The ID of your transactional account (if you don't have this ID, contact your CSM).
  • Type – The MIME type of the attachment (e.g., "text/plain", "text/html", "application/pdf").
  • UniqueMessageID enforces idempotency. This is limited to 254 characters.
  • IsSuccess – true is returned if the send was successful. Otherwise, false.
  • SendID – If the send failed, null is returned.
  • Error – A description of the error. When the send succeeds, null is returned. If the specified template is invalid, Error contains "Invalid template". If idempotency is enforced a 409 error code shows with the following message "Request for this UniqueMessageID has succeeded before".
  • Each call may include a maximum of 200 email recipients.
  • This function supports a maximum of 10 calls in parallel.

Sample Request

	"FromEmail":"[[email protected]](mailto:[email protected])",
	"ReplyTo":"[[email protected]](mailto:[email protected])",
	"Subject":"Check out today's hot deals!",
	"Html":"html content goes here",
	"PlainText":"plain text content goes here",
		{"Email":"[[email protected]](mailto:[email protected])"},
		{"Email":"[[email protected]](mailto:[email protected])"}
		"Content":"/_Base64 Encoded Content_/",
	"UniqueMessageID" (optional):"87ba42c0-9431-4266-b808-01cf05867006"

Sample Response

{"IsSuccess":false,"SendID":null,"Error":"Invalid template"}
Click Try It! to start a request and see the response here!